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@STRING{classe = {}}

@ARTICLE{akimoto2004,
  author = {H akimoto and R. B Rallock},
  title = {Heat capacity Measurements of 3He-4He Mixture Films},
  journal = {J. Low Temp Phys},
  year = {2004},
  volume = {134},
  pages = {257--262},
  number = {112},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Experimental/2000-2004/(2004)Heat Capacity Measurements of 3He-4He Mixture Films.pdf:PDF},
  owner = {Jo{\~a}o Batista}
}

@ARTICLE{PhysRevB.64.134503,
  author = {Apaja, V. and Krotscheck, E.},
  title = {Layered $^{4}He$ and $^{3}He-^{4}He$ mixture between two surfaces},
  journal = {Phys. Rev. B},
  year = {2001},
  volume = {64},
  pages = {134503},
  number = {13},
  month = {Aug},
  abstract = {We examine the static, dynamic, and low-temperature thermodynamic
	properties of liquid 4He and the low-concentration limit of 3He-4He
	mixtures confined between two walls. A generalized variational Jastrow-Feenberg
	ansatz with time-dependent correlations is used for describing the
	excited states; the present variant accounts for up to three-phonon
	effects. We show that with decreasing wall separation the quantum
	liquid goes though a sequence of confined layering transitions familiar
	from classical fluids. These transitions are due to the geometry
	and have potentially observable effects in the roton excitations
	near wave vector k∼2 Å -1. In high-density liquid 4He, 3He impurities
	assemble in the middle of the gap forming a nearly perfect two-dimensional
	Fermi-liquid layer.},
  doi = {10.1103/PhysRevB.64.134503},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/Apaja(2001)Layered $^{4}He$ and $^{3}He-^{4}He$ mixture between two surfaces.pdf:PDF},
  numpages = {21},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.09.07}
}

@ARTICLE{archambault2009universal,
  author = {Archambault, P. and Bramwell, ST and Fortin, J.Y. and Holdsworth,
	PCW and Peysson, S. and Pinton, J.F.},
  title = {{Universal magnetic fluctuations in the two-dimensional< formula>
	XY</formula> model}},
  journal = {Journal of Applied Physics},
  year = {2009},
  volume = {83},
  pages = {7234--7236},
  number = {11},
  abstract = {sem pdf
	
	
	We discuss the probability distribution function for the magnetic
	order parameter M, in the low temperature phase of the two-dimensional
	XY model. In this phase the system is critical over the whole range
	of temperature. The thermally averaged value of the order parameter
	, which is zero in the thermodynamic limit, has abnormally large
	finite size corrections. An exact result, within a spin wave calculation
	gives =(1/2N)T/8πJ, where J is the magnetic exchange constant and
	N the number of spins. We show, using Monte Carlo simulation, that
	the distribution function, Q(y-), y=T-1LT/4πJM, is an asymmetric
	universal function. Using a diagramatic technique, we show that the
	asymmetry comes from three-spin and higher correlations. If only
	two-spin correlations are considered, the distribution is Gaussian.
	However, as there are contributions from two-spin terms separated
	by all distances, the distribution remains broad and is consistent
	with a divergent susceptibility. © 1998 American Institute of Physics.},
  doi = {10.1063/1.367855},
  issn = {0021-8979},
  owner = {joao},
  publisher = {AIP},
  timestamp = {2010.12.06}
}

@ARTICLE{archambault1998universal,
  author = {Archambault, P. and Bramwell, ST and Fortin, J.Y. and Holdsworth,
	PCW and Peysson, S. and Pinton, J.F.},
  title = {Universal magnetic fluctuations in the two-dimensional XY model},
  journal = {Journal of Applied Physics},
  year = {1998},
  volume = {83},
  pages = {7234},
  abstract = {We discuss the probability distribution function for the magnetic
	order parameter M, in the low temperature phase of the two-dimensional
	XY model. In this phase the system is critical over the whole range
	of temperature. The thermally averaged value of the order parameter
	〈M〉, which is zero in the thermodynamic limit, has abnormally large
	finite size corrections. An exact result, within a spin wave calculation
	gives 〈M〉 = (1/2N)T/8πJ, where J is the magnetic exchange constant
	and N the number of spins. We show, using Monte Carlo simulation,
	that the distribution function, Q(y−〈y〉), y = T−1LT/4πJM, is an asymmetric
	universal function. Using a diagramatic technique, we show that the
	asymmetry comes from three-spin and higher correlations. If only
	two-spin correlations are considered, the distribution is Gaussian.
	However, as there are contributions from two-spin terms separated
	by all distances, the distribution remains broad and is consistent
	with a divergent susceptibility. © 1998 American Institute of Physics.},
  doi = {10.1063/1.367855},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Archambault (1998)Universal magnetic fluctuations in the two-dimensional XY model .pdf:PDF},
  owner = {joao},
  timestamp = {2010.08.22}
}

@ARTICLE{archambault1997magnetic,
  author = {Archambault, P. and Bramwell, ST and Holdsworth, PCW},
  title = {Magnetic fluctuations in a finite two-dimensional model},
  journal = {Journal of Physics A: Mathematical and General},
  year = {1997},
  volume = {30},
  pages = {8363},
  abstract = {We calculate the two-dimensional probability for the magnetization
	in a two-dimensional XY model of finite size. We show that, for arbitrarily
	large N, there is a topological difference between the distributions
	in the low-temperature spin wave regime and in the high-temperature
	paramagnetic regime. In the low-temperature phase is a well-defined
	ring function and we calculate an upper bound for . Even so, this
	is consistent with the susceptibility per spin, , being divergent.
	We show further that the distribution function Q(M) for the scalar
	magnetization has a universal form, scaling with the single variable
	, where L is the system size and J is the coupling constant. We show
	that has considerable structure, with two terms of order N, one due
	to the spin waves and the other due to vortices. This leads to a
	peak in at the Kosterlitz - Thouless - Berezinskii transition.},
  doi = {10.1088/0305-4470/30/24/005},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Archambault (1997)Magnetic fluctuations in a finite two-dimensional XY model .pdf:PDF},
  owner = {joao},
  publisher = {IOP Publishing},
  timestamp = {2010.08.22}
}

@ARTICLE{PhysRevB.75.144512,
  author = {Balabanyan, Kar\'en G.},
  title = {Effect of disorder on the superfluid transition in two-dimensional
	systems},
  journal = {Phys. Rev. B},
  year = {2007},
  volume = {75},
  pages = {144512},
  number = {14},
  month = {Apr},
  doi = {10.1103/PhysRevB.75.144512},
  numpages = {9},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2011.02.04}
}

@ARTICLE{ballesteros1998critical,
  author = {HG Ballesteros and LA Fernandez and V. Martin-Mayor and A. {Munoz
	Sudupe} and G. Parisi and JJ Ruiz-Lorenzo},
  title = {Critical exponents of the three-dimensional diluted Ising model},
  journal = {Phys. Rev. B},
  year = {1998},
  volume = {58},
  pages = {2740--2747},
  number = {5},
  abstract = {We study the phase diagram of the site-diluted Ising model in a wide
	dilution range, through Monte Carlo simulations and finite-size scaling
	techniques. Our results for the critical exponents and universal
	cumulants turn out to be dilution independent, but only after a proper
	infinite volume extrapolation, taking into account the leading corrections-to-scaling
	terms.},
  doi = {10.1103/PhysRevB.58.2740},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Ballesteros(1998)Critical exponents of the three-dimensional diluted Ising model.pdf:PDF},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.01.06}
}

@ARTICLE{banks2005temperature,
  author = {Banks, ST and Bramwell, ST},
  title = {Temperature-dependent fluctuations in the two-dimensional XY model},
  journal = {Journal of Physics A: Mathematical and General},
  year = {2005},
  volume = {38},
  pages = {5603},
  abstract = {We present a detailed investigation of the probability density function
	(PDF) of order parameter fluctuations in the finite two-dimensional
	XY (2dXY) model. In the low-temperature critical phase of this model,
	the PDF approaches a universal non-Gaussian limit distribution in
	the limit T → 0. Our analysis resolves the question of temperature
	dependence of the PDF in this regime, for which conflicting results
	have been reported. We show analytically that a weak temperature
	dependence results from the inclusion of multiple loop graphs in
	a previously derived graphical expansion. This is confirmed by numerical
	simulations on two controlled approximations to the 2dXY model: the
	harmonic and 'harmonic XY' models. The harmonic model has no Kosterlitz–Thouless–Berezinskiĭ
	(KTB) transition and the PDF becomes progressively less skewed with
	increasing temperature until it closely approximates a Gaussian function
	above T ≈ 4π. Near to that temperature, we find some evidence of
	a phase transition, although our observations appear to exclude a
	thermodynamic singularity.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Banks(2005)Temperature-dependent fluctuations in the two-dimensional XY model.pdf:PDF},
  owner = {joao},
  publisher = {IOP Publishing},
  timestamp = {2010.08.01}
}

@ARTICLE{RevModPhys.79.1,
  author = {Barmatz, M. and Hahn, Inseob and Lipa, J. A. and Duncan, R. V.},
  title = {Critical phenomena in microgravity: Past, present, and future},
  journal = {Rev. Mod. Phys.},
  year = {2007},
  volume = {79},
  pages = {1--52},
  number = {1},
  month = {Jan},
  doi = {10.1103/RevModPhys.79.1},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Barmatz(2007)Critical phenomena in microgravity\: Past, present, and future.pdf:PDF},
  numpages = {51},
  owner = {joao},
  publisher = {American Physical Society},
  review = {This review provides an overview of the progress in using the low-gravity
	environment of space to explore critical phenomena and test modern
	theoretical predictions. Gravity-induced variations in the hydrostatic
	pressure and the resulting density gradients adversely affect ground-based
	measurements near fluid critical points. Performing measurements
	in a low-gravity environment can significantly reduce these difficulties.
	A number of significant experiments have been performed in low-Earth
	orbit. Experiments near the lambda transition in liquid helium explored
	the regime of large correlation lengths and tested the theoretical
	predictions to a level of precision that could not be obtained on
	Earth. Other studies have validated theoretical predictions for the
	divergence in the viscosity as well as the unexpected critical speeding
	up of the thermal equilibrium process in pure fluids near the liquid-gas
	critical point. We describe the scientific content of previously
	flown low-gravity investigations of critical phenomena as well as
	those in the development stage, and associated ground-based work.},
  timestamp = {2010.09.07}
}

@BOOK{baym1991landau,
  title = {Landau Fermi-liquid theory: concepts and applications},
  publisher = {Wiley-Interscience},
  year = {1991},
  author = {Baym, G. and Pethick, C.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/Livros/Baym G., Pethick C. Landau Fermi-liquid theory (Wiley, 1991)(ISBN 0471824186)(T)(O)(212s)_PSa_.djvu:Djvu},
  owner = {joao},
  timestamp = {2010.06.28}
}

@ARTICLE{berche2002surface,
  author = {Berche, B.},
  title = {Surface properties at the Kosterlitz-Thouless transition},
  journal = {Physics Letters A},
  year = {2002},
  volume = {302},
  pages = {336--340},
  number = {5-6},
  abstract = {Monte Carlo simulations of the two-dimensional XY model are performed
	in a square geometry with free and mixed fixed-free boundary conditions.
	Using a Schwarz–Christoffel conformal mapping, we deduce the exponent
	η of the order parameter correlation function and its surface equivalent
	ηshort parallel at the Kosterlitz–Thouless transition temperature.
	The well-known value η(TKT)=1/4 is easily recovered even with systems
	of relatively small sizes, since the shape effects are encoded in
	the conformal mapping. The exponent associated to the surface correlations
	is similarly obtained η1(TKT)similar, equals0.54.},
  doi = {10.1016/S0375-9601(02)01167-2},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/Bertrand (2002)Surface properties at the Kosterlitz–Thouless transition.pdf:PDF},
  owner = {joao},
  publisher = {Elsevier},
  timestamp = {2010.08.01}
}

@ARTICLE{berche2009influence,
  author = {Berche, B. and Farinas-Sanchez, AI and Holovatch, Y. and Paredes,
	R.},
  title = {INFLUENCE OF QUENCHED DILUTION ON THE QUASI-LONG-RANGE ORDERED PHASE
	OF THE $2D$ XY MODEL},
  journal = {The European Physical Journal B-Condensed Matter},
  year = {2003},
  volume = {36},
  pages = {91--98},
  number = {1},
  abstract = {sem pdf livre
	
	The influence of non magnetic impurities in the 2d XY model is investigated
	through Monte Carlo (MC) simulations. The general picture of the
	transition is fully understood from the Harris criterion which predicts
	that the universality class is unchanged, and the Berezinskii-Kosterlitz-Thouless
	description of the topological transition remains valid. We nevertheless
	address here the question about the influence of dilution on the
	quasi-long-range order at low temperatures. In particular, we study
	the asymptotic of the pair correlation function and report the MC
	estimates for the critical exponent $\eta$ at different dilutions.
	In the weak dilution region, our MC calculations are further supported
	by simple spin-wave-like calculations.},
  doi = {10.1140/epjb/e2003-00310-5},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/Berche(2003)Influence of quenched dilution on the quasi-long-range ordered phase of the 2d XY model.pdf:PDF},
  owner = {joao},
  publisher = {Springer-Verlag GmbH},
  timestamp = {2010.09.14}
}

@ARTICLE{berezinskii1972destruction,
  author = {Berezinskii, VL},
  title = {Destruction of long-range order in one-dimensional and two-dimensional
	systems possessing a continuous symmetry group. II. Quantum systems},
  journal = {Soviet Journal of Experimental and Theoretical Physics},
  year = {1972},
  volume = {34},
  pages = {610},
  abstract = {sem online},
  owner = {joao},
  timestamp = {2010.08.28}
}

@ARTICLE{Berezinskii1971,
  author = {Berezinskii, VL},
  title = {Destruction of long range order in one dimensional and two dimensional
	systems having a continuous symmetry group, I Classical systems,
	ZETF 59 (1970) 907},
  journal = {Sov. Phys. JEPT},
  year = {1971},
  volume = {32},
  pages = {493},
  abstract = {sem arquivo online},
  owner = {joao},
  timestamp = {2010.07.26}
}

@ARTICLE{Berker1979,
  author = {A. N. Berker and D. R. Nelson},
  title = {Superfluidity and phase separation in helium films},
  journal = {Phys. Rev. B},
  year = {1979},
  volume = {19},
  pages = {2488--2503},
  number = {2488},
  note = {19},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/Berker(1979 )Superfluidity and phase separation ·in helium films.pdf:PDF},
  owner = {Jo{\~a}o Batista}
}

@ARTICLE{betts1977critical,
  author = {Betts, DD},
  title = {{Critical properties of the XY model}},
  journal = {Physica B+ C},
  year = {1977},
  volume = {86},
  pages = {556},
  abstract = {sem pdf
	
	
	The spin one half XY model is of interest as the probably simplest
	quantum mechanical many body system, as a model for liquid 4He near
	the lambda transition, as a model for a class of antiferromagnetic
	insulators near TN and as a model for granular superconductors. The
	latest estimates of the critical properties of the three dimensional
	spin one half XY model are presented. The evidence for and nature
	of a phase transition in the two dimensional XY model are discussed.
	Recent experimental measurements on the compounds CoCl2·6H2O and
	CoBr2·6H2O and the compounds CO(C5H5NO)6 (ClO4)2 and Co(C5H5NO)6
	(BF4)2 are compared with theoretical predictions for the spin Image
	XY model on the square and simple cubic lattices, respectively. Renormalization
	group calculations are touched on.},
  doi = {10.1016/0378-4363(77)90594-0},
  issn = {0378-4363},
  owner = {joao},
  publisher = {Elsevier},
  timestamp = {2010.10.31}
}

@BOOK{Domb1974,
  title = {Phase transitions and critical phenomena},
  publisher = {Academic Press},
  year = {1974},
  editor = {Domb, C. and Green, M.S},
  author = {D. D. Betts},
  volume = {3},
  pages = {570- 645},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/Livros/Domb C., Green S.M. (eds.) Phase transitions and critical phenomena, vol.3 (AP, 1974)(ISBN 0122203038)(KA)(600dpi)(T)(710s)_PTpt_.djvu:Djvu},
  owner = {joao},
  timestamp = {2010.11.01}
}

@ARTICLE{Betts1968,
  author = {Betts, D. D. and Lee, M. H.},
  title = {Critical Properties of the $XY$ Model},
  journal = {Phys. Rev. Lett.},
  year = {1968},
  volume = {20},
  pages = {1507 - 1510},
  number = {26},
  month = {Jun},
  abstract = {The XY model of a quantum lattice fluid or a ferromagnet is studied
	by the method of exact high-temperature series expansion. Nine terms
	are obtained in the free-energy series and seven in the series for
	the square of the fluctuation in the long-range order. Analysis of
	these series yields the critical values kTc/J=4.84±0.06, γ=1.00±0.07,
	and α=-0.20±0.20 for the fcc lattice.},
  doi = {10.1103/PhysRevLett.20.1507},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/Betts (1968)CRITICAL PROPERTIES OF THE XY MODEL.pdf:PDF},
  numpages = {3},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.10.31}
}

@ARTICLE{binder1981finite,
  author = {Binder, K.},
  title = {Finite size scaling analysis of Ising model block distribution functions},
  journal = {Zeitschrift f{\\"u}r Physik B Condensed Matter},
  year = {1981},
  volume = {43},
  pages = {119--140},
  number = {2},
  abstract = {sem pdf livre},
  owner = {joao},
  publisher = {Springer},
  timestamp = {2010.01.16}
}

@ARTICLE{PhysRevB.30.1477,
  author = {Binder, K. and Landau, D. P.},
  title = {Finite-size scaling at first-order phase transitions},
  journal = {Phys. Rev. B},
  year = {1984},
  volume = {30},
  pages = {1477--1485},
  number = {3},
  month = {Aug},
  doi = {10.1103/PhysRevB.30.1477},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/Binder, K.  and Landau, D. P.(1984)Finite-size scaling at first-order phase transitions.pdf:PDF},
  numpages = {8},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.06.24}
}

@ARTICLE{biswas2010proposed,
  author = {Biswas, S.},
  title = {Proposed fitting function for the critical Casimir force on $^4$He
	film below the $\lambda$ point},
  journal = {Physica A: Statistical Mechanics and its Applications},
  year = {2010},
  volume = {389},
  pages = {2541–2544},
  doi = {doi:10.1016/j.physa.2010.03.018},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Shyamal Biswas(2010)Proposed fitting function for the critical Casimir force on 4He filmbelow the point.pdf:PDF},
  owner = {joao},
  publisher = {Elsevier},
  timestamp = {2010.06.28}
}

@ARTICLE{blume1971ising,
  author = {Blume, M. and Emery, VJ and Griffiths, R.B.},
  title = {Ising Model for the $\lambda$ Transition and Phase Separation in
	$^3$He- $^4$He Mixtures},
  journal = {Physical Review A},
  year = {1971},
  volume = {4},
  pages = {1071--1077},
  number = {3},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/(1971)Ising Model for the ATransition and Phase Sellaration in He3-He4 Mixtures.pdf:PDF},
  owner = {joao},
  publisher = {APS},
  timestamp = {2010.06.15}
}

@ARTICLE{PhysRevLett.68.1734,
  author = {Borgs, Christian and Koteck\'y, Roman},
  title = {Finite-size effects at asymmetric first-order phase transitions},
  journal = {Phys. Rev. Lett.},
  year = {1992},
  volume = {68},
  pages = {1734--1737},
  number = {11},
  month = {Mar},
  doi = {10.1103/PhysRevLett.68.1734},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/Christian Borgs,Roman Kotecky(1992)Finite-Size Effects at Asymmetric First-Order Phase Transitions.pdf:PDF},
  numpages = {3},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.06.24}
}

@MASTERSTHESIS{Braga2006,
  author = {Braga, M.R.},
  title = {Estudo de filmes magn{\'e}ticos ultrafinos pelo m{\'e}todo de Monte
	Carlo},
  school = {Universidade Federal de Minas Gerais},
  year = {2006},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/Teses/(2006)Estudo de filmes magneticos ultrafinos pelo metodo de Monte Carlo.PDF:PDF},
  owner = {joao},
  timestamp = {2010.11.28}
}

@ARTICLE{bramwell1986neutron,
  author = {Bramwell, S.T. and Day, P. and Hutchings, M.T. and Thorne, J.R.G.
	and Visser, D.},
  title = {{Neutron scattering and optical study of the magnetic properties
	of the two-dimensional ionic rubidium chromium bromide chloride ferromagnets
	Rb2CrCl3Br and Rb2CrCl2Br2}},
  journal = {Inorganic Chemistry},
  year = {1986},
  volume = {25},
  pages = {417--421},
  number = {4},
  doi = {10.1021/ic00224a008},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Experimental/1985-1994/Bramwell(1986)Neutron Scattering and Optical Study of the Magnetic Properties of the Two-Dimensional Ionic Ferromagnets Rb2CrC13Brand Rb2CrC12Br.pdf:PDF},
  issn = {0020-1669},
  owner = {joao},
  publisher = {ACS Publications},
  timestamp = {2010.12.07}
}

@ARTICLE{bramwell2001magnetic,
  author = {Bramwell, ST and Fortin, J.Y. and Holdsworth, PCW and Peysson, S.
	and Pinton, J.F. and Portelli, B. and Sellitto, M.},
  title = {Magnetic fluctuations in the classical XY model: The origin of an
	exponential tail in a complex system},
  journal = {Physical Review E},
  year = {2001},
  volume = {63},
  pages = {41106},
  number = {4},
  __markedentry = {[joao]},
  abstract = {We study the probability density function for the fluctuations of
	the magnetic order parameter in the low-temperature phase of the
	XY model of finite size. In two dimensions, this system is critical
	over the whole of the low-temperature phase. It is shown analytically
	and without recourse to the scaling hypothesis that, in this case,
	the distribution is non-Gaussian and of universal form, independent
	of both system size and critical exponent η. An exact expression
	for the generating function of the distribution is obtained, which
	is transformed and compared with numerical data from high-resolution
	molecular dynamics and Monte Carlo simulations. The asymptotes of
	the distribution are calculated and found to be of exponential and
	double exponential form. The calculated distribution is fitted to
	three standard functions: a generalization of Gumbel’s first asymptote
	distribution from the theory of extremal statistics, a generalized
	log-normal distribution, and a χ2 distribution. The calculation is
	extended to general dimension and an exponential tail is found in
	all dimensions less than 4, despite the fact that critical fluctuations
	are limited to D=2. These results are discussed in the light of similar
	behavior observed in models of interface growth and for dissipative
	systems driven into a nonequilibrium steady state.},
  doi = {10.1103/PhysRevE.63.041106},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/Bramwell (2001)Magnetic fluctuations in the classical XY model\: The origin of an exponential tail in a complex system.pdf:PDF},
  owner = {joao},
  publisher = {APS},
  timestamp = {2010.08.22}
}

@ARTICLE{bramwell1993magnetization,
  author = {Bramwell, ST and Holdsworth, PCW},
  title = {Magnetization and universal sub-critical behaviour in two-dimensional
	XY magnets},
  journal = {Journal of Physics: Condensed Matter},
  year = {1993},
  volume = {5},
  pages = {L53},
  abstract = {Layered magnets, considered to be experimental realizations of the
	2D XY model, have a magnetization with a characteristic exponent
	beta =0.23. They show, using modified renormalization group equations,
	that this value of beta is a universal signature of finite-sized
	2D XY behaviour. They present simulation data in agreement with both
	the calculation and the experimental observations. 
	
	
	Materiaris magneticos em camadas do modelo XY 2D estudados experimentamente,
	têm uma magnetização com um expoente característico beta=0,23. Eles
	mostram, através das equações modificadas grupo de renormalização,
	que este valor de beta é uma assinatura universal do comportamento
	XY finito de tamanho 2D. Apresentam-se dados de simulação, de acordo
	com os cálculos e as observações experimentais.},
  doi = {10.1088/0953-8984/5/4/004},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/Bramwellt (1993)Magnetization and universal sub-critical behaviour in two-dimensional XY magnets.pdf:PDF},
  owner = {joao},
  publisher = {IOP Publishing},
  timestamp = {2010.07.28}
}

@ARTICLE{PhysRevB.49.8811,
  author = {Bramwell, S. T. and Holdsworth, P. C. W.},
  title = {Magnetization: A characteristic of the Kosterlitz-Thouless-Berezinskii
	transition},
  journal = {Phys. Rev. B},
  year = {1994},
  volume = {49},
  pages = {8811--8814},
  number = {13},
  month = {Apr},
  abstract = {In the low-temperature phase of the two-dimensional XY model, spin-spin
	correlations decay so slowly with distance that the thermodynamic
	limit is inaccessible. As a result the Mermin-Wagner theorem is inapplicable
	to any realizable system, and all have a measurable finite-size magnetization.
	We show that there is a regime of universal behavior near to the
	Kosterlitz-Thouless-Berezinskii transition. In experiments, the regime
	is identified by a magnetization exponent β=0.23, which we have calculated
	by a renormalization-group analysis. Monte Carlo simulations of an
	harmonic XY model clearly locate the boundaries of the universal
	regime, and identify it with vortex renormalization.},
  doi = {10.1103/PhysRevB.49.8811},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/Bramwell(1994)Magnetization\: A characteristic of the Kosterlitz-Thouless-Berezinskii transition.pdf:PDF},
  numpages = {3},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.07.26}
}

@ARTICLE{brout1959statistical,
  author = {Brout, R.},
  title = {Statistical mechanical theory of a random ferromagnetic system},
  journal = {Physical Review},
  year = {1959},
  volume = {115},
  pages = {824 - 835},
  number = {4},
  abstract = {The behavior of solid solutions of paramagnetic impurities which are
	exchange coupled in a nonmagnetic substrate turns out to yield a
	considerable body of information with regard to the nature of the
	exchange coupling as well as detailed temperature dependence of the
	spin system. In the present paper, a rigorous expansion of the mean
	free energy averaged over random sites is presented. It is shown
	that a ferromagnetic phase transition does occur. The Curie point
	is given as a function of concentration for the case of weak dilution
	in an implicit power series form.
	
	
	Many interesting qualitative features arise in the study of these
	systems. If the curve of magnetic moment vs temperature has inflections
	this indicates short-range exchange forces, whereas smooth curves
	indicate long-range forces. Similarly, long-range forces give rise
	to smooth behavior of the Curie point as a function of concentration
	for dilute samples. Alternatively, short-range forces give rather
	violent changes in Curie point near atomic fractions ≈ (number of
	nearest neighbors )-1. The method of series development used in this
	paper gives rise to this expected qualitative behavior and also enables
	one to make quantitative prediction if the exchange potential is
	known.},
  doi = {10.1103/PhysRev.115.824},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/BROUT(1959)Statistical Mechanical Theory of a Random Ferromagnetic System.pdf:PDF},
  issn = {0031-899X},
  owner = {joao},
  publisher = {APS},
  timestamp = {2010.12.11}
}

@ARTICLE{campostrini2001critical,
  author = {M. Campostrini and M. Hasenbusch and A. Pelissetto and P. Rossi and
	E. Vicari},
  title = {Critical behavior of the three-dimensional xy universality class},
  journal = {Phys. Rev. B},
  year = {2001},
  volume = {63},
  pages = {214503},
  number = {21},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Trabalhos/xy-diluido/Referencias/Critical behavior of the three-dimensional XY universality class.pdf:PDF},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.01.06}
}

@ARTICLE{PhysRevB.74.144506,
  author = {Campostrini, Massimo and Hasenbusch, Martin and Pelissetto, Andrea
	and Vicari, Ettore},
  title = {Theoretical estimates of the critical exponents of the superfluid
	transition in $ He4 $ by lattice methods},
  journal = {Phys. Rev. B},
  year = {2006},
  volume = {74},
  pages = {144506},
  number = {14},
  month = {Oct},
  doi = {10.1103/PhysRevB.74.144506},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Campostrini,Hasenbusch, Pelissetto(2006)Theoretical estimates of the critical exponents of the superfluid transition in 4He by lattice methods.pdf:PDF},
  numpages = {18},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.06.17}
}

@BOOK{cardy1996scaling,
  title = {Scaling and renormalization in statistical physics},
  publisher = {Cambridge Univ Pr},
  year = {1996},
  author = {J.L. Cardy},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/Livros/Cardy J. Scaling and Renormalization in Statistical Physics (CUP, 1996)(400dpi)(T)(ISBN 0521499593)(252s).djvu:Djvu},
  owner = {joao},
  timestamp = {2010.01.07}
}

@ARTICLE{cardy1984conformal,
  author = {Cardy, J.L.},
  title = {{Conformal invariance and universality in finite-size scaling}},
  journal = {Journal of Physics A: Mathematical and General},
  year = {1984},
  volume = {17},
  pages = {L385},
  abstract = {The universal relation between critical exponents and the amplitude
	of the correlation length divergence as a function of finite size
	at the critical point of two-dimensional systems is shown to be a
	consequence of conformal invariance. Both periodic and free boundary
	conditions are considered.},
  doi = {10.1088/0305-4470/17/7/003},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/Cardy(1984)Conformal invariance and universality in finite-size scaling.pdf:PDF},
  owner = {joao},
  publisher = {IOP Publishing},
  timestamp = {2010.12.12}
}

@ARTICLE{Cardy1979,
  author = {J. L. Cardy and D. J. Scalapino},
  title = {Phase diagram of a model for $^3$He- $^4$He mixtures in two dimensions},
  journal = {Phys. Rev. B},
  year = {1979},
  volume = { 19},
  pages = {1428--1436},
  number = {1428},
  note = {20f},
  abstract = {A dilute two-dimensional classical X-Y model is proposed to describe
	two-dimensional 3He-4He mixtures. Using a Villain form for the potential,
	a Migdal-Kadanoff position-space renormalization is carried out.
	The resulting phase diagram plotted against T and the 3He concentration
	x, is qualitatively similar to that for a three-dimensional mixture
	with some important differences: (i) The initial phase separation
	is into two normal fluids having different concentrations of 3He
	rather than into a normal fluid and a superfluid, so there is no
	real tricritical point. (ii) At lower temperatures, the phase separation
	is into a superfluid and a normal fluid, and as the phase-separation
	temperature is approached from the normal side, islands of superfluid
	appear, with the correlation length diverging with an exponent ν=1.},
  doi = {10.1103/PhysRevB.19.1428},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/Cardy(1979)Phase diagram of a model for 3He-4He mixtures in two dimensions.pdf:PDF},
  owner = {Jo{\~a}o Batista}
}

@BOOK{chaikin2000principles,
  title = {{Principles of condensed matter physics}},
  publisher = {Cambridge Univ Pr},
  year = {2000},
  author = {Chaikin, P.M. and Lubensky, T.C.},
  __markedentry = {[joao]},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/Livros/Chaikin(2000) Principles of condensed matter physics.djvu:Djvu},
  isbn = {0521794501},
  owner = {joao},
  timestamp = {2010.11.06}
}

@ARTICLE{PhysRevB.75.184413,
  author = {Chamati, H. and Romano, S.},
  title = {First-order phase transitions in classical lattice gas spin models},
  journal = {Phys. Rev. B},
  year = {2007},
  volume = {75},
  pages = {184413},
  number = {18},
  month = {May},
  abstract = {The present paper considers some classical ferromagnetic lattice-gas
	models, consisting of particles that carry n-component spins (n=2,3)
	and associated with a D-dimensional lattice (D=2,3); each site can
	host one particle at most, thus implicitly allowing for hard-core
	repulsion; the pair interaction, restricted to nearest neighbors,
	is ferromagnetic, and site occupation is also controlled by the chemical
	potential μ. The models had previously been investigated by mean
	field and two-site cluster treatments (when D=3), as well as grand-canonical
	Monte Carlo simulation in the case μ=0, for both D=2 and D=3; the
	obtained results showed the same kind of critical behavior as the
	one known for their saturated lattice counterparts, corresponding
	to one particle per site. Here we addressed by grand-canonical Monte
	Carlo simulation the case where the chemical potential is negative
	and sufficiently large in magnitude; the value μ=−D∕2 was chosen
	for each of the four previously investigated counterparts, together
	with μ=−3D∕4 in an additional instance. We mostly found evidence
	of first-order transitions, both for D=2 and D=3, and quantitatively
	characterized their behavior. Comparisons are also made with recent
	experimental results.},
  doi = {10.1103/PhysRevB.75.184413},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Chamati(2007)First-order phase transitions in classical lattice gas spin models.pdf:PDF},
  numpages = {9},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.09.06}
}

@ARTICLE{chattopadhyay1992antiferromagnetic,
  author = {Chattopadhyay, T. and Brown, PJ and Stepanov, AA and Zvyagin, AI
	and Barilo, SN and Zhigunov, DI},
  title = {{Antiferromagnetic ordering in Gd2CuO4}},
  journal = {Journal of Magnetism and Magnetic Materials},
  year = {1992},
  volume = {104},
  pages = {607--608},
  __markedentry = {[joao]},
  doi = {10.1016/0304-8853(92)90946-L},
  issn = {0304-8853},
  owner = {joao},
  publisher = {Elsevier},
  review = {We have carried out neutron diffraction and antiferromagnetic resonance
	investigations of Gd2CuO4 single crystals. The former shows that
	the magnetic moments of the gadolinium ions order antiferromagnetically
	at TN=6.4 K with the propagation vector k=(0, 0, 0). The two Gd atoms
	of the primitive unit cell related by the centre of symmetry have
	oppositely directed moments. The antiferromagnetic resonance spectra
	indicate that Gd2CuO4 belongs to the class of “easy plane” antiferromagnets
	and show the presence of a spin reorientation phase transition at
	Hc=0.88 T (Hdouble vertical bar[100], T=1.8 K). From these data we
	conclude that Gd2CuO4 has a collinear antiferromagnetic structure.},
  timestamp = {2010.12.07}
}

@ARTICLE{PhysRevE.52.1377,
  author = {Chen, S. and Ferrenberg, Alan M. and Landau, D. P.},
  title = {Monte Carlo simulation of phase transitions in a two-dimensional
	random-bond Potts model},
  journal = {Phys. Rev. E},
  year = {1995},
  volume = {52},
  pages = {1377--1386},
  number = {2},
  month = {Aug},
  note = {baixado},
  abstract = {Using the ‘‘multihit’’ Swendsen-Wang cluster flipping method, we performed
	extensive Monte Carlo simulations to investigate the critical behavior
	of the two-dimensional (2D) eight-state random-bond Potts model.
	We applied finite-size-scaling techniques to extract the critical
	exponents for two different sets of bond strengths, from which we
	concluded that the transition is second order with critical exponents
	for both sets falling into same universality class, that of a 2D
	Ising model. A variation of the Lee-Kosterlitz method for determining
	the order of a phase transition was also applied. The double-peaked
	structure of the specific heat, which was found in some of the bond
	configurations, was also studied by simulation on periodic arrangements
	of strong and weak bonds.},
  doi = {10.1103/PhysRevE.52.1377},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Chen(1995)Monte Carlo simulation of phase transitions in a two-dimensional random-bond Potts model.pdf:PDF},
  numpages = {9},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.01.16}
}

@ARTICLE{PhysRevB.46.13967,
  author = {Cheng, E. and Cole, Milton W. and Saam, W. F. and Treiner, Jacques},
  title = {Phase transitions in multilayer helium films},
  journal = {Phys. Rev. B},
  year = {1992},
  volume = {46},
  pages = {13967--13982},
  number = {21},
  month = {Dec},
  abstract = {Multilayer helium films have, until recently, been predicted and observed
	to exhibit a standard form of structural behavior: one or two solid
	layers reside adjacent to the substrate and continuous wetting liquid
	extends outward thereafter. We report contrary theoretical results
	in the case of weak-binding surfaces, the alkali metals and H2 being
	particularly important examples. Depending on the substrate potential,
	the predicted behavior can be either nonwetting or prewetting. The
	focus is on 4He, but some results for 3He are presented. Compound
	substrates, helium layer solidification, third sound, superfluid
	onset, and possible phase diagrams for T>0 are discussed. The calculations
	utilize semiempirical density-functional methods which have proven
	to be accurate in other applications. Recent experiments with alkali
	metals and H2 are discussed in relation to theoretical results.},
  doi = {10.1103/PhysRevB.46.13967},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/Cheng(1992)Phase transitions in multilayer helium films.pdf:PDF},
  numpages = {15},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.08.29}
}

@ARTICLE{chung1999essential,
  author = {Chung, SG},
  title = {Essential finite-size effect in the two-dimensional XY model},
  journal = {Physical Review B},
  year = {1999},
  volume = {60},
  pages = {11761--11764},
  number = {16},
  abstract = {The thermodynamics of the two-dimensional (2D) XY model is formulated
	by a transfer-matrix method and analyzed by a density-matrix renormalization
	group. The finite-size scaling and the beta function of the model
	are studied by the Roomany-Wyld renormalization-group theory. It
	is found that the 2D XY model has an essential finite-size effect
	and the Berezinskii-Kosterlitz-Thouless transition with the critical
	temperature TBKT=0.892 appears in a finite system of 2000–3000 spins
	as a massless to massive transition with the effective critical temperature
	Tc=1.07±0.01.},
  doi = {10.1103/PhysRevB.60.11761},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Chung(1999)Essential finite-size effect in the two-dimensional XY model.pdf:PDF},
  owner = {joao},
  publisher = {APS},
  timestamp = {2010.08.05}
}

@ARTICLE{creutz1987overrelaxation,
  author = {Creutz, M.},
  title = {Overrelaxation and monte carlo simulation},
  journal = {Physical Review D},
  year = {1987},
  volume = {36},
  pages = {515--519},
  number = {2},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/(1987)Overrelaxation and Monte Carlo simulation.pdf:PDF},
  owner = {joao},
  publisher = {APS},
  timestamp = {2010.01.26}
}

@ARTICLE{PhysRevB.52.10221,
  author = {Cuccoli, Alessandro and Tognetti, Valerio and Vaia, Ruggero},
  title = {Two-dimensional XXZ model on a square lattice: A Monte Carlo simulation},
  journal = {Phys. Rev. B},
  year = {1995},
  volume = {52},
  pages = {10221--10231},
  number = {14},
  month = {Oct},
  note = {baixado},
  abstract = {Results of Monte Carlo simulations of the ferromagnetic classical
	XXZ model on a square lattice are reported for interactions of the
	out of plane spin components λ varying between 0 and 0.99. For all
	the value of λ the signature of a Berezinskii-Kosterlitz-Thouless
	(BKT) phase transition was observed, and the corresponding critical
	temperature was located both by BKT fits and finite-size scaling
	methods. Data for in-plane and out of plane susceptibility, correlation
	length, specific heat, and internal energy are given in a broad range
	of temperature and for lattice sizes ranging from 32×32 to 256×256.},
  doi = {10.1103/PhysRevB.52.10221},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Cuccol(1995)Two-dimensional XXZ model on a square lattice\: A Monte Carlo simulation.pdf:PDF},
  numpages = {10},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.07.26}
}

@ARTICLE{defotis2008dependence,
  author = {GC DeFotis and RA Huddleston and BR Rothermel and JH Boyle and ES
	Vos and Y. Matsuyama and AT Hopkinson and TM Owens and WM May},
  title = {Dependence of the magnetic ordering temperature on dilution in a
	3D XY insulating ferromagnet},
  journal = {Journal of Physics: Condensed Matter},
  year = {2008},
  volume = {20},
  pages = {135222},
  abstract = {Ferromagnetic polycrystalline Fe[Se2CN(C2H5)2]2Cl is examined, as
	are several dilute versions of it containing diamagnetic Zn[S2CN(C2H5)2]2,
	present to the extents 3.6, 7.9, 13.7 and 20.2%. The magnetic ordering
	temperature decreases much less rapidly with dilution than predicted
	by any standard model such as the nearest neighbor 3D Ising, XY and
	Heisenberg ones, and the initial slope −(dTc/dx)/Tc is well below
	unity. A curvature change of Tc(x) appears at approximately 14% dilution.
	Extensions of simple models do not account for the results. It is
	possible, perhaps, that molecular shape factors lead to effectively
	nonrandom dilution, unexpectedly surviving ferromagnetic interactions,
	and thus to the unprecedented Tc(x).},
  doi = {10.1088/0953-8984/20/13/135222},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Experimental/2005-2010/(2008)Dependence of the magnetic ordering temperature on dilution in a 3D XY insulating ferromagnet.pdf:PDF},
  owner = {joao},
  publisher = {Institute of Physics Publishing},
  timestamp = {2010.01.06}
}

@ARTICLE{Delft2008,
  author = {van Delft, D.},
  title = {Little cup of helium, big science},
  journal = {Physics Today},
  year = {2008},
  volume = {61},
  pages = {36},
  note = {baixado},
  abstract = {On the day Heike Kamerlingh Onnes first liquefied helium, his laboratory
	at Leiden University briefly encompassed the coldest place on Earth.
	It was a wet and windy 10 July 1908. Kamerlingh Onnes, awakened before
	dawn by his wife Betsy, ordered a carriage at 5am to take him from
	his fine country house on the river Galgewater to his laboratory
	in the center of the Dutch university town. ©2008 American Institute
	of Physics},
  doi = {10.1063/1.2897948},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/van Delft(2008Little cup of helium, big science.pdf:PDF},
  owner = {joao},
  timestamp = {2010.09.06}
}

@ARTICLE{dias2009ising,
  author = {Dias, DA and de Sousa, J.R. and Plascak, JA},
  title = {{Ising model for the FepAlq alloys according to the effective field
	theory}},
  journal = {Physics Letters A},
  year = {2009},
  volume = {373},
  pages = {3513--3515},
  number = {39},
  abstract = {FeAl alloys in their disordered structural phase have been investigated
	through an Ising model where besides exchange interactions between
	nearest-neighbors Fe atoms, a superexchange interaction mediated
	by Al atoms is also taken into account. The model has been approximately
	treated according to the effective field theory. Although the phase
	diagram, as a function of Al concentration, is similar to the one
	previously obtained from Bogoliubov variational approach for the
	free energy, a different behavior for the superexchange interaction
	is achieved, which can also be physically accepted for this system.},
  doi = {10.1016/j.physleta.2009.07.086},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Dias(2009)Ising model for the Fe p Alq alloys according to the effective field theory .pdf:PDF},
  issn = {0375-9601},
  owner = {joao},
  publisher = {Elsevier},
  timestamp = {2010.12.12}
}

@ARTICLE{PhysRevB.82.184421,
  author = {Dillon, Brianna S. and Chiesa, Simone and Scalettar, Richard T.},
  title = {Monte Carlo study of the two-dimensional vector Blume-Capel model},
  journal = {Phys. Rev. B},
  year = {2010},
  volume = {82},
  pages = {184421},
  number = {18},
  month = {Nov},
  __markedentry = {[joao]},
  abstract = {The Blume-Capel model (BCM) generalizes the Ising model to allow for
	the presence of vacancy sites, and was used as an early description
	of the effect of a 3He admixture on the 4He superfluid transition,
	especially tricritical behavior. The vector counterpart of the BCM
	improves upon the original by utilizing spins with a continuous symmetry,
	the correct universality class for superfluidity. This paper presents
	a Monte Carlo calculation of the full phase diagram of the two-dimensional
	vector BCM. A tricritical point is shown to separate a first-order
	phase transition line at low temperature from a Kosterlitz-Thouless
	boundary at higher temperature and the location of the tricritical
	point is determined.},
  doi = {10.1103/PhysRevB.82.184421},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Dillon(2010)Monte Carlo study of the two-dimensional vector Blume-Capel model.pdf:PDF;:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Dillon(2010)Monte Carlo study of the two-dimensional vector Blume-Capel model.pdf:PDF},
  numpages = {6},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.12.26}
}

@BOOK{dorlas1999statistical,
  title = {{Statistical mechanics: fundamentals and model solutions}},
  publisher = {Institute of Physics Pub.},
  year = {1999},
  author = {Dorlas, T.C.},
  pages = {200-209},
  __markedentry = {[joao]},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/Livros/Dorlas(1999) Statistical mechanics\: fundamentals and model solutions.djvu:Djvu},
  isbn = {9780750305396},
  lccn = {99019621},
  owner = {joao},
  timestamp = {2010.11.06},
  url = {http://books.google.com.br/books?id=o8LvAAAAMAAJ}
}

@ARTICLE{elmers1996critical,
  author = {Elmers, HJ and Hauschild, J. and Liu, GH and Gradmann, U.},
  title = {Critical phenomena in the two-dimensional XY magnet Fe (100) on W
	(100)},
  journal = {Journal of Applied Physics},
  year = {1996},
  volume = {79},
  pages = {4984},
  abstract = {We experimentally investigated the magnetic phase transition of the
	in‐plane magnetized double‐layer Fe on W(100). This epitaxial system
	approximates the theoretical two‐dimensional (2D) XY model to a large
	extent because of its pseudomorphic growth and structural stability.
	We measured the magnetization of W(100)/Fe in the vicinity of the
	Curie temperature TC using the diffraction of spin polarized electrons
	and the magnetization of W(100)/Fe/Ag in a wider temperature interval
	using conversion electron Mössbauer spectroscopy. The temperature
	dependence of the spontaneous magnetization follows a power law with
	an exponent β=0.22±0.03 in the temperature regime 0.3≤T/TC≤0.99.
	The susceptibility χ(T≳TC) can be fitted alternatively by a power
	law with an unusually large exponent γ≊5 or by an exponential law
	χ∝exp(b/√T−TC), as predicted for the 2D XY model, with b=1.6. © 1996
	American Institute of Physics.},
  doi = {10.1063/1.361923},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Experimental/1995-1999/Elmers (1996)Critical phenomena in the two-dimensional XY magnet Fe(100) on W(100) .pdf:PDF},
  owner = {joao},
  timestamp = {2010.08.22}
}

@ARTICLE{evertz1996critical,
  author = {Evertz, H.G. and Landau, DP},
  title = {{Critical dynamics in the two-dimensional classical XY model: A spin-dynamics
	study}},
  journal = {Physical Review B},
  year = {1996},
  volume = {54},
  pages = {12302--12317},
  number = {17},
  issn = {1550-235X},
  owner = {joao},
  publisher = {APS},
  timestamp = {2011.01.02}
}

@ARTICLE{PhysRevLett.63.1195,
  author = {Ferrenberg, Alan M. and Swendsen, Robert H.},
  title = {Optimized Monte Carlo data analysis},
  journal = {Phys. Rev. Lett.},
  year = {1989},
  volume = {63},
  pages = {1195--1198},
  number = {12},
  month = {Sep},
  doi = {10.1103/PhysRevLett.63.1195},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/Alan M. Ferrenberg (a) and Robert H. Swendsen(1989)Optimized Monte Carlo Data Analysis.pdf:PDF},
  numpages = {3},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.06.24}
}

@ARTICLE{Ferrenberg1988,
  author = {Ferrenberg, Alan M. and Swendsen, Robert H.},
  title = {New Monte Carlo technique for studying phase transitions},
  journal = {Phys. Rev. Lett.},
  year = {1988},
  volume = {61},
  pages = {2635--2638},
  number = {23},
  month = {Dec},
  abstract = {We present a new method for using the data from Monte Carlo simulations
	that can increase the efficiency by 2 or more orders of magnitude.
	A single Monte Carlo simulation is sufficient to obtain complete
	thermodynamic information over the entire scaling region near a phase
	transition. The accuracy of the method is demonstrated by comparison
	with exact results for the d=2 Ising model. New results for d=2 eight-state
	Potts model are also presented. The method is generally applicable
	to statistical models and lattice-gauge theories.},
  doi = {10.1103/PhysRevLett.61.2635},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/Ferrenberg(1988)New Monte Carlo Technique for Studying Phase Transitions.pdf:PDF},
  numpages = {3},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.11.18}
}

@ARTICLE{fisher1988theory,
  author = {D.S. Fisher and G.M. Grinstein and A. Khurana},
  title = {Theory of random magnets},
  journal = {Physics Today},
  year = {1988},
  volume = {41},
  pages = {56--67},
  number = {12},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/Fisher (1988)THEORY OF RANDOM MAGN.pdf:PDF},
  owner = {joao},
  timestamp = {2010.01.06}
}

@ARTICLE{RevModPhys.70.653,
  author = {Fisher, Michael E.},
  title = {Renormalization group theory: Its basis and formulation in statistical
	physics},
  journal = {Rev. Mod. Phys.},
  year = {1998},
  volume = {70},
  pages = {653--681},
  number = {2},
  month = {Apr},
  abstract = {The nature and origins of renormalization group ideas in statistical
	physics and condensed matter theory are recounted informally, emphasizing
	those features of prime importance in these areas of science in contradistinction
	to quantum field theory, in particular: critical exponents and scaling,
	relevance, irrelevance and marginality, universality, and Wilson’s
	crucial concept of flows and fixed points in a large space of Hamiltonians.},
  doi = {10.1103/RevModPhys.70.653},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Fisher(1998)Renormalization group theory\: Its basis and formulation in statistical physics.pdf:PDF},
  numpages = {28},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.12.16}
}

@ARTICLE{RevModPhys.46.597,
  author = {Fisher, Michael E.},
  title = {The renormalization group in the theory of critical behavior},
  journal = {Rev. Mod. Phys.},
  year = {1974},
  volume = {46},
  pages = {597--616},
  number = {4},
  month = {Oct},
  abstract = {The renormalization group approach to the theory of critical behavior
	is reviewed at an introductory level with emphasis on magnetic systems.
	Among recent results reported are the dependence of critical exponents
	above Tc on dimensionality d=4-ε; on the symmetry index or number
	of spin components, n; on the range and anisotropy of exchange couplings;
	and on dipolar interactions and lattice anisotropies, in ferro- and
	antiferromagnets. Calculations of the scaling functions for the equation
	of state and critical scattering are summarized.},
  doi = {10.1103/RevModPhys.46.597},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/Fisher(1974)The renormalization group in the theory of critical behavior.pdf:PDF},
  numpages = {19},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.12.16}
}

@ARTICLE{PhysRevA.8.1111,
  author = {Fisher, Michael E. and Barber, Michael N. and Jasnow, David },
  title = {Helicity Modulus, Superfluidity, and Scaling in Isotropic Systems},
  journal = {Phys. Rev. A},
  year = {1973},
  volume = {8},
  pages = {1111--1124},
  number = {2},
  month = {Aug},
  abstract = {The ordered state of a d-dimensional isotropic system with an n-vector
	(n≥2) order parameter is considered. By the imposition of suitable
	boundary conditions it is shown how to define explicitly a helicity
	modulus ϒ(T) which measures the free-energy increment associated
	with "twisting" the direction of the order parameter. For a Bose
	system the superfluid density is seen to be ρs(T)=(m/ℏ)2ϒ(T). A critical
	exponent v is defined by ϒ(T)∼|T-Tc|v as T→Tc; for an ideal Bose
	gas and spherical model (n→∞), v=1 is an exact result for all d>2.
	The difficulties of defining a correlation length in the ordered
	phase are discussed. A full scaling theory of the correlations avoids
	these problems and may be linked to a phenomenological hydrodynamic
	approach, to clarify and rederive Josephson's relation v=2β-ην=2-α-2ν.
	This reduces to v=(d-2)ν (used by some authors with d=3), only if
	one accepts d-dependent, "hyperscaling" relations such as dν=2-α;
	however, both these latter relations fail for the ideal Bose gas
	when d>4. An alternative derivation of the formula v=2-α-2ν is based
	on the scaling theory for systems with a large but finite dimension.},
  doi = {10.1103/PhysRevA.8.1111},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/Fisher(1973)Helicity Modulus, Superfluidity, and Scaling in Isotropic Systems.pdf:PDF},
  numpages = {13},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.12.25}
}

@ARTICLE{PhysRevB.43.11177,
  author = {Fisher, Michael E. and Barbosa, Marcia C.},
  title = {Phase boundaries near critical end points. I. Thermodynamics and
	universality},
  journal = {Phys. Rev. B},
  year = {1991},
  volume = {43},
  pages = {11177--11184},
  number = {13},
  month = {May},
  abstract = {The vicinity of a critical end point is analyzed in order to reveal
	singularities arising in the form of the first-order phase boundary
	to the noncritical phase. Phenomenological arguments are presented
	and critically assessed that directly relate the nonanalytic behavior
	of the phase boundary to universal features of the bulk thermodynamics
	on the associated critical line. Explicit values are given for universal
	amplitude ratios describing the boundary for various types of criticality.},
  doi = {10.1103/PhysRevB.43.11177},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/Fisher(1991)Phase boundaries near critical end points. I. Thermodynamics and universality.pdf:PDF},
  numpages = {7},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.08.25}
}

@ARTICLE{PhysRevLett.65.2402,
  author = {Fisher, Michael E. and Upton, Paul J.},
  title = {Universality and interfaces at critical end points},
  journal = {Phys. Rev. Lett.},
  year = {1990},
  volume = {65},
  pages = {2402--2405},
  number = {19},
  month = {Nov},
  abstract = {At a critical end point a critical phase coexists with a noncritical
	phase α and singularities arise beyond those on the associated critical
	line. New universal amplitude ratios are defined for the shape of
	the α-phase boundary and for the noncritical surface tensions near
	end points. A postulated correspondence with wall/surface criticality
	leads to predictions for general dimension d that are exact at (and
	near) d=2 and for d≥4 (where mean-field theory applies) and yield
	experimentally testable estimates for d=3.},
  doi = {10.1103/PhysRevLett.65.2402},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/Fisher(1990)Universality and interfaces at critical end points.pdf:PDF},
  numpages = {3},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.08.25}
}

@ARTICLE{Frank1997,
  author = {W Frank and Jr Elliott and J. David Horntrop and Andrew J. Majda},
  title = {A Fourier\-Wavelet Monte Carlo Method for Fractal Random Fields},
  journal = {J. Comput. Phys.},
  year = {1997},
  volume = {133},
  pages = {384–408},
  number = {160},
  abstract = {A new hierarchical method for the Monte Carlo simulation of random
	fields called the Fourier–wavelet method is developed and applied
	to isotropic Gaussian random fields with power law spectral density
	functions. This technique is based upon the orthogonal decomposition
	of the Fourier stochastic integral representation of the field using
	wavelets. The Meyer wavelet is used here because its rapid decay
	properties allow for a very compact representation of the field.
	The Fourier–wavelet method is shown to be straightforward to implement,
	given the nature of the necessary precomputations and the run-time
	calculations, and yields comparable results with scaling behavior
	over as many decades as the physical space multiwavelet methods developed
	recently by two of the authors. However, the Fourier–wavelet method
	developed here is more flexible and, in particular, applies to anisotropic
	spectra generated through solutions of differential equations. Simulation
	results using this new technique and the well-known nonhierarchical
	simulation technique, the randomization method, are given and compared
	for both a simple shear layer model problem as well as a two-dimensional
	isotropic Gaussian random field. The Fourier–wavelet method results
	are more accurate for statistical quantities depending on moments
	higher than order 2, in addition to showing a quite smooth decay
	to zero on the scales smaller than the scaling regime when compared
	with the randomization method results. The only situation in which
	the nonhierarchical randomization method is more computationally
	efficient occurs when no more than four decades of scaling behavior
	are needed and the statistical quantities of interest depend only
	on second moments.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Elliott(1997)A Fourier–Wavelet Monte Carlo Method for Fractal Random Fields.pdf:PDF},
  owner = {Jo{\~a}o Batista},
  url = {http://dx.doi.org/10.1006/jcph.1996.5647}
}

@PHDTHESIS{Freire2005a,
  author = {R. T. S. Freire},
  title = {Estudo de modelos de spins contínuos anisotrópicos aplicações em
	misturas de $^$He-$^4$He},
  school = {Universidade Federal de Minas Gerais},
  year = {2005},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/Teses/(2005)Estudo de modelos de spins contínuos anisotrópicos aplicações a misturas de 3 H e - 4 H e .pdf:PDF},
  owner = {Jo{\~a}o Batista}
}

@ARTICLE{Freire2005,
  author = {R. T. S. Freire and S. J. Mitchell and J. A. PIascak and and D. P.
	Landau},
  title = {Monte Carlo study of the XY vector Blume-Emery-Grifliths model for
	$^3$He-$^4$He mixtures in three dimensions},
  journal = {Phys. Rev. E},
  year = {2005},
  volume = {72},
  pages = {056117},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/R. T. S. Freire(2005)Monte Carlo study of the XY vector Blume-Emery-Griffiths model for 3HeA 4He mixtures in three dimensions.pdf:PDF},
  owner = {Jo{\~a}o Batista}
}

@ARTICLE{PhysRevLett.97.075301,
  author = {Ganshin, A. and Scheidemantel, S. and Garcia, R. and Chan, M. H.
	W.},
  title = {Critical Casimir Force in $^4$He Films: Confirmation of Finite-Size
	Scaling},
  journal = {Phys. Rev. Lett.},
  year = {2006},
  volume = {97},
  pages = {075301},
  number = {7},
  month = {Aug},
  doi = {10.1103/PhysRevLett.97.075301},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/A. Ganshin Scheidemantel Garcia and M. H.W. Chan(2006) Critical Casimir Force in 4He Films\: Confirmation of Finite-Size Scaling.pdf:PDF},
  numpages = {4},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.06.28}
}

@ARTICLE{garcia2002critical,
  author = {Garcia, R. and Chan, MHW},
  title = {Critical Casimir Effect near the $^3$He- $^4$He Tricritical Point},
  journal = {Physical review letters},
  year = {2002},
  volume = {88},
  pages = {86101},
  number = {8},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/(2002)Critical Casimir Effect near the 3 He-4 He Tricritical Point.pdf:PDF},
  owner = {joao},
  publisher = {APS},
  timestamp = {2010.06.21}
}

@ARTICLE{PhysRevB.23.5797,
  author = {Francis M. Gasparini and Tar-pin Chen and Bhattacharyya Bidyut},
  title = {Corrections to scaling and surface specific heat of confined helium},
  journal = {Phys. Rev. B},
  year = {1981},
  volume = {23},
  pages = {5797--5814},
  number = {11},
  month = {Jun},
  abstract = {Received 17 November 1980 In earlier work by Chen and Gasparini it
	was found that leading-order finite-size scaling for the specific
	heat of helium confined to films and pores did not seem to hold.
	We present here an analysis which includes correction-to-scaling
	terms. We do this in two ways: First, we use equations for the shift
	and value of the specific-heat maximum as suggested by Fisher. Secondly,
	we show that a bulk-plus-surface specific-heat model yields very
	similar equations for the shift and maximum, and in addition suggests
	a simple power law for the scaling function near Tλ. All aspects
	of the data can be fitted very simply with this model with only three
	parameters. We find, however, that the surface specific-heat exponent
	αs does not agree with the scaling prediction αs=α+ν. When correction-to-scaling
	terms are introduced to force agreement, we find these terms to be
	very large, larger than the leading terms, and several orders of
	magnitude larger than the equivalent correction-to-scaling amplitudes
	for bulk helium. We believe our analysis in terms of the surface
	specific heat is the first for an experimental system, and we find
	that it is quite in keeping with the spirit of some theoretical calculations.},
  doi = {10.1103/PhysRevB.23.5797},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/Gasparini(1981)Corrections to scaling and surface specific heat of confined helium.pdf:PDF},
  numpages = {17},
  publisher = {American Physical Society}
}

@ARTICLE{RevModPhys.80.1009,
  author = {Gasparini, Francis M. and Kimball, Mark O. and Mooney, Kevin P. and
	Diaz-Avila, Manuel},
  title = {Finite-size scaling of $^{4}He$ at the superfluid transition},
  journal = {Rev. Mod. Phys.},
  year = {2008},
  volume = {80},
  pages = {1009--1059},
  number = {3},
  month = {Sep},
  abstract = {Experimental results for confined 4He are reviewed that are relevant
	to correlation-length scaling near the superfluid transition. Data
	are discussed for which the uniform confinement represents dimensionality
	crossover from three dimensions (3D) to 2D, 1D, and 0D. In addition,
	data for the onset of superfluidity are discussed representing 2D
	to 1D crossover. Collectively, these data for the specific heat,
	superfluid density, and thermal conductivity yield, in some cases,
	excellent agreement with expectations of correlation-length scaling
	and, in others, surprising disagreement. This is especially true
	in the case of 3D to 2D crossover where data are most plentiful.
	Here there is a clear distinction between scaling when the confined
	helium is normal and the lack of scaling when helium becomes superfluid.
	By far the most problematic result is the lack of scaling for the
	superfluid density for 3D to 2D crossover and, to some extent, for
	3D to 1D crossover. Connectivity and proximity effects can be identified
	with some data. These might explain some experimental results and
	present opportunities for further studies of weakly coupled superfluid
	regions. Measurements to test the universality of finite-size effects
	along the superfluid transition lines as function of pressure and
	3He concentration are also discussed. In the case of the specific
	heat, data indicate that the nonuniversal behavior of the critical
	exponent α, obtained from bulk measurements, is responsible for the
	observation of a distinct scaling locus for confined pure 4He versus
	that of the confined mixtures},
  doi = {10.1103/RevModPhys.80.1009},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Gasparini(2008)Finite-size scaling of 4He at the superfluid transition.pdf:PDF},
  numpages = {50},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.11.29}
}

@ARTICLE{PhysRevB.45.13129,
  author = {Goldner, Lori S. and Ahlers, Guenter },
  title = {Superfluid fraction of $^{4}He$ very close to $T_{\lambda{}}$},
  journal = {Phys. Rev. B},
  year = {1992},
  volume = {45},
  pages = {13129--13132},
  number = {22},
  month = {Jun},
  abstract = {Measurements of the superfluid fraction ρs/ρ of 4He are presented
	for the reduced-temperature range 3×10-7≲t≡1-T/Tλ≲10-2. The data
	were obtained from the second-sound velocity u20, which in turn was
	determined from nonlinear-pulse transit-time measurements. The exponent
	ζ, which describes the leading singularity of ρs/ρ, is found to be
	0.6705±0.0006. This result is in good agreement with existing theories
	and previous data much further away from Tλ.},
  doi = {10.1103/PhysRevB.45.13129},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/Goldner(1992)Superfluid fraction of 4He very close to Tl.pdf:PDF},
  numpages = {3},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.12.16}
}

@MISC{Gould2009,
  author = {Harvey Gould and Jan Tobochnik and Wolfgang Christian and Anne Cox},
  title = {STP XY Model Program},
  month = {March},
  year = {2009},
  owner = {joao},
  timestamp = {2011.01.09},
  url = {http://www.compadre.org/stp/items/detail.cfm?ID=8642}
}

@ARTICLE{Graf1967,
  author = {E. H. Graf and D. M. Lee and John D. Reppy},
  title = {Phase Separation and the Superfluid Transition in Liquid $^3$He-
	$^4$He Mixtures},
  journal = {Phys. Rev. Lett.},
  year = {1967},
  volume = {19},
  pages = {417-419},
  number = { 417},
  note = {16f},
  abstract = {The phase-separation and superfluid-transition temperatures of He3-He4
	liquid mixtures have been investigated as functions of He3 concentration
	under conditions of saturated vapor pressure by means of dielectric-constant
	and thermal-equilibrium time-constant measurements. The λ line, which
	divides the normal and superfluid phases in the temperature-concentration
	plane, is found to intersect the phase-separation curve at its peak.},
  doi = {10.1103/PhysRevLett.19.417},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/Graf(1967)Phase Separation and the Superfluid Transition in Liquid He3-He4 Mixtures.pdf:PDF},
  owner = {Jo{\~a}o Batista}
}

@ARTICLE{green1974phase,
  author = {Green, M.S. and Domb, C. and Louis, J.},
  title = {{Phase transitions and critical phenomena}},
  year = {1976},
  owner = {joao},
  publisher = {Academic Press},
  timestamp = {2010.11.01}
}

@ARTICLE{guida1998critical,
  author = {Guida, R. and Zinn-Justin, J.},
  title = {Critical exponents of the N-vector model},
  journal = {Journal of Physics A: Mathematical and General},
  year = {1998},
  volume = {31},
  pages = {8103--8121},
  abstract = {We investigate local update algorithms for the fully frustrated XY
	model on a square lattice. In addition to the standard updating procedures
	like the Metropolis or heat bath algorithm we include overrelaxation
	sweeps, implemented through single spin updates that preserve the
	energy of the configuration. The dynamical critical exponent (of
	order two) stays more or less unchanged. However, the integrated
	autocorrelation times of the algorithm can be significantly reduced.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/R Guida(1998)Critical exponents of the N -vector model.pdf:PDF},
  owner = {joao},
  publisher = {Institute of Physics Publishing},
  timestamp = {2010.01.16},
  url = {http://dx.doi.org/10.1088/0305-4470/31/40/006}
}

@ARTICLE{PhysRevLett.61.1996,
  author = {Gupta, Rajan and DeLapp, Jerry and Batrouni, George G. and Fox, Geoffrey
	C. and Baillie, Clive F. and Apostolakis, John },
  title = {Phase Transition in the $2D$ XY Model},
  journal = {Phys. Rev. Lett.},
  year = {1988},
  volume = {61},
  pages = {1996--1999},
  number = {17},
  month = {Oct},
  abstract = {We present detailed results for the susceptibility χ, correlation
	length ξ, and specific heat cν for the XY model. The best fit to
	χ and ξ data is obtained by use of the Kosterlitz-Thouless scaling
	form with ν=0.500(1), but η shows considerable deviation from ¼ down
	to T=1.03. The critical temperature is estimated to be Tc=0.898(2).
	The simulations are done on 642, 1282, 2562, and 5122 lattices with
	use of an overrelaxed algorithm which decorrelates as τ≈0.15ξ1.2.
	Similar reduction in critical slowing down is anticipated for all
	continuous-spin models.
	
	
	Nós apresentamos resultados detalhados para a susceptibilidade χ,
	ξ correlação de comprimento, e cν calor específico para o modelo
	XY. O melhor ajuste para χ e ξ dados são obtidos pelo uso do formulário
	de escala Kosterlitz-Thouless com ν = 0,500 (1), mas η mostra desvio
	considerável de ¼ até T = 1,03. A temperatura crítica é estimada
	em Tc = 0,898 (2). As simulações são feitas em 642, 1282, 2562 e
	5122 reticulados com o uso de um algoritmo que overrelaxed decorrelates
	como τ 0.15ξ1.2 ≈. redução semelhante na desaceleração crítica para
	baixo é previsto para todos os modelos de spin-contínuo.},
  doi = {10.1103/PhysRevLett.61.1996},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/Gupta(1988)Phase Transition in the $2D XY$ Model.pdf:PDF},
  numpages = {3},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.07.29}
}

@ARTICLE{hadzibabic2006berezinskii,
  author = {Hadzibabic, Z. and Kr{\\"u}ger, P. and Cheneau, M. and Battelier,
	B. and Dalibard, J.},
  title = {Berezinskii-Kosterlitz-Thouless crossover in a trapped atomic gas},
  journal = {Nature},
  year = {2006},
  volume = {441},
  pages = {1118--1121},
  number = {7097},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Experimental/2005-2010/Hadzibabic(2006)Berezinskii-Kosterlitz–Thouless crossover in a trapped atomic gas.pdf:PDF},
  owner = {joao},
  publisher = {Nature Publishing Group},
  timestamp = {2010.10.12}
}

@ARTICLE{hallock1995properties,
  author = {Hallock, R.B.},
  title = {The properties of multilayer $^3$He-$^4$He mixture films},
  journal = {Progress in Low Temperature Physics},
  year = {1995},
  volume = {14},
  pages = {321--443},
  __markedentry = {[joao]},
  abstract = {In this review we have attempted to bring forward a number of the
	important experiments and theoretical ideas which have led to our
	present understanding of the physics of 3He–4 mixture films. There
	has been a lot of progress in this understanding, particularly in
	recent years. This recent progress has focused on the energetics
	and the properties of the 3He atoms as an impurity. The advent of
	systematics measurements of the heat capacity and the magnetic susceptibility
	and the NMR relaxation times have provided a wealth of information,
	most of which is now relatively well understood. The data awaits
	a detailed theory for the case of relatively large amounts of 3He.
	In the case of third sound and other measurements, the mixture picture
	presented by the experiments is more com- plicated with some apparent
	disparity among the experiments. There is as yet no complete theoretical
	understanding of the dynamincs of these films as revealed by experiment.
	It may be the case that substrate effects are present and respon-
	sible for some of the disparity which exists.},
  doi = {10.1016/S0079-6417(06)80019-3},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Hallock(1995)The properties of multilayer 3HE--4HE mixture films.pdf:PDF},
  owner = {joao},
  publisher = {Elsevier},
  timestamp = {2010.09.07}
}

@ARTICLE{harris1974effect,
  author = {Harris, A.B.},
  title = {{Effect of random defects on the critical behaviour of Ising models}},
  journal = {Journal of Physics C: Solid State Physics},
  year = {1974},
  volume = {7},
  pages = {1671},
  abstract = {A cumulant expansion is used to calculate the transition temperature
	of Ising models with random-bond defects. For a concentration, x,
	of missing interactions in the simple-square Ising model the author
	finds -Tc-1 dTc/dx mod x=0=1.329 compared with the mean-field value
	of one. If the interactions are independent random variable with
	a width delta J/J identical to epsilon , the result is -Tc-1 dTc/d
	epsilon 2 mod epsilon =0=0.312 compared with the mean-field results
	of zero. An approximation yields the specific heat in the critical
	regime as C approximately C0/(1+x gamma 2C0), where gamma is a constant
	and C0 is the unperturbed specific heat at a renormalized temperature.
	Thus, the specific heat divergence is broadened over a temperature
	interval Delta T, with Delta T/Tc approximately x(1 alpha )/, where
	alpha is the critical exponent for the specific heat, and a maximum
	value of order x-1 is attained. Heuristic arguments show that this
	smoothing effect occurs if alpha >0.},
  doi = {10.1088/0022-3719/7/9/009},
  owner = {joao},
  publisher = {IOP Publishing},
  timestamp = {2011.01.10}
}

@ARTICLE{harris1974renormalization,
  author = {A.B. Harris and TC Lubensky},
  title = {Renormalization-Group Approach to the Critical Behavior of Random-Spin
	Models},
  journal = {Physical Review Letters},
  year = {1974},
  volume = {33},
  pages = {1540--1543},
  number = {26},
  note = {baixado},
  abstract = {A renormalization-group technique is used to study the critical behavior
	of spin models in which each interaction has a small independent
	random width about its average value. The cluster approximation of
	Niemeyer and Van Leeuwen indicates that the two-dimensional Ising
	model has the same critical behavior as the homogeneous system. The
	ε expansion for n-component continuous spins shows that this behavior
	holds to first order in ε for n>4. For n<4, there is a new stable
	fixed point with 2ν=1+[3n/16(n-1)]ε.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/Harris(1974)Renormalization-Group Approach to the Critical Behavior of Random-Spin Models.pdf:PDF},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.01.02},
  url = {http://link.aps.org/doi/10.1103/PhysRevLett.33.1540}
}

@ARTICLE{PhysRevB.81.165412,
  author = {Hasenbusch, Martin },
  title = {Specific heat, internal energy, and thermodynamic Casimir force in
	the neighborhood of the $\lambda{}$ transition},
  journal = {Phys. Rev. B},
  year = {2010},
  volume = {81},
  pages = {165412},
  number = {16},
  month = {Apr},
  abstract = {We discuss the relation of the excess specific heat, the excess energy
	per area, and the thermodynamic Casimir force in thin films. A priori
	these quantities depend on the reduced temperature t and the thickness
	L0 of the film. However finite-size scaling theory predicts that
	the scaling functions h″(x), h′(x), and θ(x) of these quantities
	depend only on the combination x=t[L0/ξ0]1/ν, where ν is the critical
	exponent and ξ0 the amplitude of the correlation length. Furthermore,
	the finite-size scaling function θ(x) of the thermodynamic Casimir
	force per area can be expressed in terms of the scaling functions
	h′(x) and h(x) of the excess energy per area and the excess free
	energy per area. Here we study this relation at the example of thin
	films of the improved two-component ϕ4 model on the simple cubic
	lattice. Note that this model undergoes a second-order phase transition
	that belongs to the three-dimensional XY universality class. First
	we simulate films with periodic boundary conditions in the short
	direction and a thickness up to L0=13 lattice spacings. We find that
	even for these rather thin films, the predictions of finite-size
	scaling are well satisfied. We repeat the analysis for films with
	free boundary conditions. To this end we use Monte Carlo data for
	the energy per area obtained in previous work. It turns our that
	corrections to scaling caused by the boundary conditions are very
	prominent in this case. Only by taking into account these corrections
	we are able to obtain θ(x) from the excess energy. Finally we repeat
	this exercise using experimental data for the excess specific heat
	of 4He films near the λ transition. The finite-size scaling behavior
	of the excess specific heat is governed by h″(x), which is proportional
	to the scaling function f2 discussed in the literature.},
  doi = {10.1103/PhysRevB.81.165412},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Hasenbusch(2010)Specific heat, internal energy, and thermodynamic Casimir force in the neighborhood of the transition.pdf:PDF},
  numpages = {11},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.12.26}
}

@ARTICLE{1742-5468-2009-10-P10006,
  author = {Martin Hasenbusch},
  title = {The specific heat of thin films near the λ-transition: a Monte Carlo
	study of an improved three-dimensional lattice model},
  journal = {Journal of Statistical Mechanics: Theory and Experiment},
  year = {2009},
  volume = {2009},
  pages = {P10006},
  number = {10},
  abstract = {We study the finite size scaling behaviour of the specific heat of
	thin films in the neighbourhood of the λ-transition. To this end
	we have simulated the improved two-component ##IMG## [http://ej.iop.org/icons/Entities/phi.gif]
	{phi} 4 model on the simple cubic lattice. We employ free boundary
	conditions in the short direction to mimic the vanishing order parameter
	at the boundaries of a 4 He film. Most of our simulations are performed
	for the thicknesses L 0 = 8, 16 and 32 of the film. It turns out
	that one has to take into account corrections ##IMG## [http://ej.iop.org/images/1742-5468/2009/10/P10006/jstat331836ieqn1.gif]
	{{\propto } L_0^{-1}} to obtain a good collapse of the finite size
	scaling functions obtained from different L 0 . Our results are compared
	with those obtained from experiments on thin films of 4 He near the
	λ-transition, from field theory and from previous Monte Carlo simulations.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Hasenbusch(2010)The specific heat of thin films near the λ-transition\: a Monte Carlo study of an improved three-dimensional lattice model.pdf:PDF},
  owner = {joao},
  timestamp = {2010.12.26},
  url = {http://stacks.iop.org/1742-5468/2009/i=10/a=P10006}
}

@ARTICLE{hasenbusch2009kosterlitz,
  author = {Hasenbusch, M.},
  title = {{The Kosterlitz--Thouless transition in thin films: a Monte Carlo
	study of three-dimensional lattice models}},
  journal = {Journal of Statistical Mechanics: Theory and Experiment},
  year = {2009},
  volume = {2009},
  pages = {P02005},
  __markedentry = {[joao]},
  abstract = {We study the phase transition of thin films in the three-dimensional
	XY universality class. To this end, we perform a Monte Carlo study
	of the improved two-component phi4 model, the improved dynamically
	diluted XY model and the standard XY model on the simple cubic lattice.
	We study films of a thickness up to L0 = 32 lattice spacings. In
	the short direction of the lattice, free boundary conditions are
	employed. Using a finite size scaling (FSS) method, proposed recently,
	we determine the transition temperature with high accuracy. The effectively
	two-dimensional finite size scaling behaviour of the Binder cumulant
	U4, the second-moment correlation length over the lattice size ξ2nd/L,
	the ratio of the partition functions with anti-periodic and periodic
	boundary conditions Za/Zp and the helicity modulus Upsilon clearly
	confirm the Kosterlitz–Thouless nature of the transition. We analyse
	the scaling of the transition temperature with the thickness L0 of
	the film. We compute the universal ratio of the thickness of the
	film L0 and the transverse correlation length ξT in the three-dimensional
	thermodynamic limit at the Kosterlitz–Thouless transition temperature
	of a film of thickness L0: [L0,KT/ξT]* = 1.595(7). This results can
	be compared with experimental results on thin films of 4He near the
	λ-transition.},
  doi = {10.1088/1742-5468/2009/02/P02005},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Hasenbusch(2008)The Kosterlitz–Thouless transition in thin films\: a Monte Carlo study of three-dimensional lattice models.pdf:PDF},
  owner = {joao},
  publisher = {IOP Publishing},
  timestamp = {2010.12.06}
}

@ARTICLE{hasenbusch2008binder,
  author = {Hasenbusch, M.},
  title = {The Binder cumulant at the Kosterlitz--Thouless transition},
  journal = {Journal of Statistical Mechanics: Theory and Experiment},
  year = {2008},
  volume = {2008},
  pages = {P08003},
  __markedentry = {[joao]},
  abstract = {We study the behaviour of the Binder cumulant on finite square lattices
	at the Kosterlitz–Thouless phase transition. We determine the fixed-point
	value of the Binder cumulant and the coefficient of the leading logarithmic
	correction. These calculations are supplemented with Monte Carlo
	simulations of the classical XY (plane rotator) model, the Villain
	model and the dual of the absolute value solid-on-solid model. Using
	the single-cluster algorithm, we simulate lattices up to L = 4096.
	For the lattice sizes reached, subleading corrections are needed
	to fit the data for the Binder cumulant. We demonstrate that the
	combined analysis of the Binder cumulant and the second moment correlation
	length over the lattice size allows for an accurate determination
	of the Kosterlitz–Thouless transition temperature on relatively small
	lattices. We test the new method on the example of the two-component
	phi4 model on the lattice.},
  doi = {10.1088/1742-5468/2008/08/P08003},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Hasenbusch(2008)The Binder cumulant at the Kosterlitz–Thouless transition.pdf:PDF},
  owner = {joao},
  publisher = {IOP Publishing},
  timestamp = {2010.08.22}
}

@ARTICLE{hasenbusch2008monte,
  author = {Hasenbusch, M.},
  title = {{A Monte Carlo study of the three-dimensional XY universality class:
	universal amplitude ratios}},
  journal = {Journal of Statistical Mechanics: Theory and Experiment},
  year = {2008},
  volume = {2008},
  pages = {P12006},
  abstract = {We simulate lattice models in the three-dimensional XY universality
	class in the low and the high temperature phase. In addition to the
	XY model, we study the three-dimensional two-component phi4 model
	on the simple cubic lattice. The parameter of the phi4 model is chosen
	such that leading corrections to scaling are small. This allows us
	to compute a number of universal amplitude ratios with unprecedented
	precision: RUpsilon = 0.411(2), RB = 2.83(1), Rξ+ = 0.3562(10) and
	Rξ− = 0.850(5). These results can be compared with those obtained
	from other theoretical methods, such as field theoretic methods or
	the high temperature series expansion and also with experimental
	results for the λ-transition of 4He.},
  doi = {10.1088/1742-5468/2008/12/P12006},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Hasenbusch(2008) A Monte Carlo study of the three-dimensional XY universality class\: universal amplitude ratios.pdf:PDF},
  owner = {joao},
  publisher = {IOP Publishing},
  timestamp = {2010.12.16}
}

@ARTICLE{hasenbusch2006three,
  author = {Hasenbusch, M.},
  title = {{The three-dimensional XY universality class: a high precision Monte
	Carlo estimate of the universal amplitude ratio A+/A-}},
  journal = {Journal of Statistical Mechanics: Theory and Experiment},
  year = {2006},
  volume = {2006},
  pages = {P08019},
  doi = {10.1088/1742-5468/2006/08/P08019},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Hasenbusch (2006) The three-dimensional XY universality class\: a high precision Monte Carlo estimate of the universal amplitude ratio A+A-.pdf:PDF},
  owner = {joao},
  publisher = {IOP Publishing},
  review = {We simulate the improved three-dimensional two-component phi4 model
	on the simple cubic lattice in the low and the high temperature phase
	for reduced temperatures down to |T − Tc|/Tc ≈ 0.0017 on lattices
	of size up to 3503. Our new results for the internal energy and the
	specific heat are combined with the accurate estimates of βc and
	data for the internal energy and the specific heat at βc recently
	obtained in Campostrini et al (2006 Preprint cond-mat/0605083). We
	find Rα = (1 − A+/A−)/α = 4.01(5), where α is the critical exponent
	of the specific heat and A ± is the amplitude of the specific heat
	in the high and the low temperature phase, respectively.},
  timestamp = {2010.12.16}
}

@ARTICLE{hasenbusch2005two,
  author = {Hasenbusch, M.},
  title = {The two-dimensional XY model at the transition temperature: a high-precision
	Monte Carlo study},
  journal = {Journal of Physics A: Mathematical and General},
  year = {2005},
  volume = {38},
  pages = {5869},
  abstract = {We study the classical XY (plane rotator) model at the Kosterlitz–Thouless
	phase transition. We simulate the model using the single-cluster
	algorithm on square lattices of a linear size up to L = 2048. We
	derive the finite-size behaviour of the second moment correlation
	length over the lattice size ξ2nd/L at the transition temperature.
	This new prediction and the analogous one for the helicity modulus
	Upsilon are confronted with our Monte Carlo data. This way βKT =
	1.1199 is confirmed as inverse transition temperature. Finally, we
	address the puzzle of logarithmic corrections of the magnetic susceptibility
	χ at the transition temperature.},
  doi = {10.1088/0305-4470/38/26/003},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Hasenbusch(2005)The two-dimensional XY model at the transitiontemperature\: a high-precision Monte Carlo study.pdf:PDF},
  owner = {joao},
  publisher = {IOP Publishing},
  timestamp = {2010.08.01}
}

@BOOK{henkel1999conformal,
  title = {{Conformal invariance and critical phenomena}},
  publisher = {Springer Verlag},
  year = {1999},
  author = {Henkel, M.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/Livros/Henkel M. Conformal invariance and critical phenomena (Springer, 1999)(ISBN 354065321X)(K)(T)(434s)_PTqs_.djvu:Djvu},
  isbn = {354065321X},
  owner = {joao},
  timestamp = {2010.12.12}
}

@ARTICLE{hirakawa1973investigations,
  author = {Hirakawa, K. and Ikeda, H.},
  title = {{Investigations of Two-Dimensional Ferromagnet K2CuF4 by Neutron
	Scattering}},
  journal = {Journal of the Physical Society of Japan},
  year = {1973},
  volume = {35},
  number = {5},
  abstract = {sem pdf
	
	
	The magnetic properties of the insulating Heisenberg ferromagnet K2CuF4
	have been studied by neutron diffraction. A strong paramagnetic diffuse
	scattering of the form of ridge was observed near Tc=6.25 K supporting
	the two-dimensional nature of this compound. From the asphericity
	of this scattering, the ratio of the exchange constants both in the
	weakest and the strongest directions was determined as J'/J=0.00066.
	Below Tc, ferromagnetism appears with the spin aligned parallel to
	the c-plane. As K2CuF4 has no Ising-like symmetry, though the crystal
	structure is the same to that of K2NiF4, marked contrast appears.
	for instance, it behaves as a typical simple three-dimensional ferromagnet
	like Ms(T)∝(1-CT3/2) up to T/Tc∼0.86, β=0.33 and 2ν=1.35. ©1973 The
	Physical Society of Japan},
  doi = {10.1143/JPSJ.35.1328},
  owner = {joao},
  timestamp = {2010.12.07}
}

@ARTICLE{PhysRevLett.99.185301,
  author = {Hucht, Alfred },
  title = {Thermodynamic Casimir Effect in $^4$He Films near $T\lambda$ Monte
	Carlo Results},
  journal = {Phys. Rev. Lett.},
  year = {2007},
  volume = {99},
  pages = {185301},
  number = {18},
  month = {Nov},
  doi = {10.1103/PhysRevLett.99.185301},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/AlfredHucht(2007)Thermodynamic Casimir Effect in 4He Films near T\: Monte Carlo Results.pdf:PDF},
  numpages = {4},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.06.28}
}

@BOOK{itzykson1991statistical,
  title = {Statistical field theory: From Brownian motion to renormalization
	and lattice gauge theory},
  publisher = {Cambridge University Press},
  year = {1991},
  author = {Itzykson, C. and Drouffe, J.M.},
  volume = {1},
  number = {1},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/Livros/Statistical Field Theory\: Volume 1 - From brownian motion to renormalization and lattice gauge theory.djvu:Djvu},
  owner = {joao},
  timestamp = {2010.08.11}
}

@ARTICLE{ivaneyko2008universality,
  author = {Ivaneyko, D. and Berche, B. and Holovatch, Y. and Ilnytskyi, J.},
  title = {On the universality class of the 3d Ising model with long-range-correlated
	disorder},
  journal = {Physica A: Statistical Mechanics and its Applications},
  year = {2008},
  volume = {387},
  pages = {4497--4512},
  number = {18},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/(2008) On the universality class of the 3d Ising model.pdf:PDF},
  owner = {joao},
  publisher = {Elsevier},
  timestamp = {2010.06.21}
}

@ARTICLE{PhysRevB.55.3580,
  author = {Janke, Wolfhard},
  title = {Logarithmic corrections in the two-dimensional XY model},
  journal = {Phys. Rev. B},
  year = {1997},
  volume = {55},
  pages = {3580--3584},
  number = {6},
  month = {Feb},
  abstract = {Using two sets of high-precision Monte Carlo data for the two-dimensional
	XY model in the Villain formulation on square L×L lattices, the scaling
	behavior of the susceptibility χ and correlation length ξ at the
	Kosterlitz-Thouless phase transition is analyzed with emphasis on
	multiplicative logarithmic corrections (ln L)-2r in the finite-size
	scaling region and (ln ξ)-2r in the high-temperature phase near criticality,
	respectively. By analyzing the susceptibility at criticality on lattices
	of size up to 5122 we obtain r=-0.0270(10), in agreement with recent
	work of Kenna and Irving on the finite-size scaling of Lee-Yang zeros
	in the cosine formulation of the XY model. By studying susceptibilities
	and correlation lengths up to ξ≈140 in the high-temperature phase,
	however, we arrive at quite a different estimate of r=0.0560(17),
	which is in good agreement with recent analyses of thermodynamic
	Monte Carlo data and high-temperature series expansions of the cosine
	formulation.},
  doi = {10.1103/PhysRevB.55.3580},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Janke(1997Logarithmic corrections in the two-dimensional XY model.pdf:PDF},
  numpages = {4},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.08.04}
}

@CONFERENCE{janke2005quenched,
  author = {Janke, W. and Berche, B. and Chatelain, C. and Berche, P.E. and Hellmund,
	M.},
  title = {Quenched disordered ferromagnets},
  booktitle = {Proceedings of “Lattice},
  year = {2005},
  organization = {Citeseer},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/(2005)Quenched Disordered Ferromagnets.pdf:PDF},
  owner = {joao},
  timestamp = {2010.06.21}
}

@CONFERENCE{janke2004phase,
  author = {Janke, W. and Berche, P.E. and Chatelain, C. and Berche, B.},
  title = {Phase transitions in disordered ferromagnets},
  booktitle = {NIC Symposium 2004},
  year = {2004},
  pages = {241--250},
  organization = {Citeseer},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/(2004)Phase Transitions in Disordered Ferromagnets.pdf:PDF},
  owner = {joao},
  timestamp = {2010.06.21}
}

@ARTICLE{PhysRevB.48.15807,
  author = {Janke, Wolfhard and Nather, Klaus },
  title = {Monte Carlo simulation of dimensional crossover in the XY model},
  journal = {Phys. Rev. B},
  year = {1993},
  volume = {48},
  pages = {15807--15811},
  number = {21},
  month = {Dec},
  abstract = {We report Monte Carlo simulations of Villain’s periodic Gaussian XY
	model on L2×N lattices of film geometry (L≫N) with up to N=16 layers,
	employing the single-cluster update algorithm combined with improved
	estimators for measurements. The boundary conditions are periodic
	within each layer and free at the bottom and top layer. Based on
	data for the specific heat, the spin-spin correlation function, and
	the susceptibility in the high-temperature phase we study the crossover
	from three- to two-dimensional behavior as criticality is approached.
	For the transition temperatures, determined from Kosterlitz-Thouless
	fits to the correlation length and susceptibility, we observe a pronounced
	scaling behavior with N. The associated critical exponent, however,
	deviates from theoretical expectations. More qualitatively, we further
	discuss the distribution and shapes of vortex loops in the crossover
	region.},
  doi = {10.1103/PhysRevB.48.15807},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/Janke(1993)Monte Carlo simulation of dimensional crossover in the XY model.pdf:PDF},
  numpages = {4},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.12.16}
}

@ARTICLE{PhysRevB.48.7419,
  author = {Janke, Wolfhard and Nather, Klaus},
  title = {High-precision Monte Carlo study of the two-dimensional XY Villain
	model},
  journal = {Phys. Rev. B},
  year = {1993},
  volume = {48},
  pages = {7419--7433},
  number = {10},
  month = {Sep},
  abstract = {We report two sets of high-precision Monte Carlo simulations of the
	two-dimensional XY model in Villain’s formulation on large square
	lattices, employing the single-cluster update algorithm. In one set
	of simulations we use improved estimators to study the correlation
	length ξ and susceptibility χ in the high-temperature phase. On a
	1200×1200 lattice this allows measurements up to ξ≊140 with statistical
	errors less than 0.25%. We judge quantitatively the advantage of
	using improved estimators, estimate autocorrelation times, and compare
	the numerical efficiency of various definitions of the correlation
	length. From least-square fits to these data we find clear support
	for the exponential divergence predicted by Kosterlitz and Thouless.
	The other set of simulations is performed in the vicinity of the
	transition point. Here we apply finite-size-scaling theory to obtain
	an estimate for the exponent η at criticality.},
  doi = {10.1103/PhysRevB.48.7419},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/Janke(1993)High-precision Monte Carlo study of the two-dimensional XY Villain model.pdf:PDF},
  numpages = {14},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.12.07}
}

@ARTICLE{jiang2009magnetization,
  author = {Jiang, J.S. and Chien, CL},
  title = {{Magnetization and finite-size effects in Gd/W multilayers}},
  journal = {Journal of Applied Physics},
  year = {2009},
  volume = {79},
  pages = {5615--5617},
  number = {8},
  abstract = {sem pdf
	
	We have studied the magnetization and finite‐size effects of thin
	Gd layers in sputter‐deposited Gd/W multilayers. The interfacial
	Gd atoms lose about 9% of their moment, as the result of being in
	proximity with W. Annealing the multilayers at high temperatures
	improves the crystalline quality and sharpens the susceptibility
	peaks. The Curie temperature TC decreases with decreasing dGd according
	to the finite‐size scaling relation [TC(∞)-TC(d)]/TC(∞)=(d/d0)-λ.
	The shift exponent λ has been found to be 1.5±0.1 and the constant
	d0 to be 13 Å. © 1996 American Institute of Physics.},
  issn = {0021-8979},
  owner = {joao},
  publisher = {AIP},
  timestamp = {2010.12.11}
}

@ARTICLE{johnson2009finite,
  author = {Johnson, D. and Perera, P. and OShea, MJ},
  title = {{Finite size effects in nanoscale Tb particles}},
  journal = {Journal of Applied Physics},
  year = {2009},
  volume = {79},
  pages = {5299--5301},
  number = {8},
  abstract = {sem pdf 
	
	
	We compute finite-size corrections to dyonic giant magnons in two
	ways. One is by examining the asymptotic behavior of helical strings
	of [K. Okamura, R. Suzuki, A perspective on classical strings from
	complex sine-Gordon solitons, Phys. Rev. D 75 (2007) 046001, hep-th/0609026]
	as elliptic modulus k goes to unity, and the other is by applying
	the generalized Lüscher formula for μ-term of [R.A. Janik, T. Łukowski,
	Wrapping interactions at strong coupling—the giant magnon, Phys.
	Rev. D 76 (2007) 126008, arXiv: 0708.2208 [hep-th]] to the situation
	in which incoming particles are boundstates. By careful choice of
	poles in the su(2|2)2-invariant S-matrix, we find agreement of the
	two results, which makes possible to predict the (leading) finite-size
	correction for dyonic giant magnons to all orders in the 't Hooft
	coupling.},
  issn = {0021-8979},
  owner = {joao},
  publisher = {AIP},
  review = {sem pdf},
  timestamp = {2010.12.11}
}

@ARTICLE{Jongh;A.R.Miedema1974,
  author = {L. J. de Jongh; A. R. Miedema},
  title = {Experiments on simple magnetic model systems},
  journal = {Advances in Physics},
  year = {1974},
  volume = {23},
  pages = {1 - 260},
  number = {1},
  abstract = {sem pdf
	
	In this paper we shall review the theoretical and experimental results
	obtained on simple magnetic model systems. We shall consider the
	Heisenberg, XY and Ising type of interaction (ferro and antiferromagnetic),
	on magnetic lattices of dimensionality 1, 2 and 3.
	
	
	Particular attention will be paid to the approximation of these model
	systems in real crystals, viz. how they can be realized or be expected
	to exist in nature. A large number of magnetic compounds which, according
	to the available experimental information, meet the requirements
	set by one or the other of the various models are considered and
	their properties discussed. Many examples will be given that demonstrate
	to what extent experiments on simple magnetic systems support theoretical
	descriptions of magnetic ordering phenomena and contribute to their
	understanding. It will also be indicated in which direction there
	is a need and/or a possibility for future work.},
  doi = {10.1080/00018739700101558},
  owner = {joao},
  timestamp = {2010.12.07}
}

@ARTICLE{PhysRevB.16.1217,
  author = {Jos\'e, Jorge V. and Kadanoff, Leo P. and Kirkpatrick, Scott and
	Nelson, David R.},
  title = {Renormalization, vortices, and symmetry-breaking perturbations in
	the two-dimensional planar model},
  journal = {Phys. Rev. B},
  year = {1977},
  volume = {16},
  pages = {1217--1241},
  number = {3},
  month = {Aug},
  abstract = {The classical planar Heisenberg model is studied at low temperatures
	by means of renormalization theory and a series of exact transformations.
	A numerical study of the Migdal recursion relation suggests that
	models with short-range isotropic interactions rapidly become equivalent
	to a simplified model system proposed by Villain. A series of exact
	transformations then allows us to treat the Villain model analytically
	at low temperatures. To lowest order in a parameter which becomes
	exponentially small with decreasing temperature, we reproduce results
	obtained previously by Kosterlitz. We also examine the effect of
	symmetry-breaking crystalline fields on the isotropic planar model.
	A numerical study of the Migdal recursion scheme suggests that these
	fields (which must occur in real quasi-two-dimensional crystals)
	are strongly relevant variables, leading to critical behavior distinct
	from that found for the planar model. However, a more exact low-temperature
	treatment of the Villain model shows that hexagonal crystalline fields
	eventually become irrelevant at temperatures below the Tc of the
	isotropic model. Isotropic planar critical behavior should be experimentally
	accessible in this case. Nonuniversal behavior may result if cubic
	crystalline fields dominate the symmetry breaking. Interesting duality
	transformations, which aid in the analysis of symmetry-breaking fields
	are also discussed.},
  doi = {10.1103/PhysRevB.16.1217},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/Jorge(1977)Renormalization, vortices, and symmetry-breaking perturbations in the two-dimensional planar model.pdf:PDF},
  numpages = {24},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.12.07}
}

@ARTICLE{1742-6596-249-1-012039,
  author = {João B dos Santos-Filho, and Douglas F de Albuquerque and N O Moreno},
  title = {Magnetic Properties of the Metamagnet Ising Model in a three-dimensional
	Lattice in a Random and Uniform Field},
  journal = {Journal of Physics: Conference Series},
  year = {2010},
  volume = {249},
  pages = {012039},
  number = {1},
  abstract = {The Monte Carlo technique is here used for study the behavior of metamagnet
	Ising model in presence of random field. The phase diagram is obtained
	by employing Glauber's algorithm in a cubic lattice of linear size
	L with values ranging from 16 to 42 and with periodic boundary conditions.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Santos-Filho(2010)Magnetic Properties of the Metamagnet Ising Model in a three-dimensional Lattice in a Random and Uniform Field.pdf:PDF},
  owner = {joao},
  timestamp = {2010.12.24},
  url = {http://stacks.iop.org/1742-6596/249/i=1/a=012039}
}

@ARTICLE{kamilov1999monte,
  author = {Kamilov, I.K. and Murtazaev, A.K. and Aliev, K.K.},
  title = {{Monte Carlo studies of phase transitions and critical phenomena}},
  journal = {Physics-Uspekhi},
  year = {1999},
  volume = {42},
  pages = {689--709},
  number = {7},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Kamilov(1999)Monte Carlo studies of phase transitions and critical phenomena.pdf:PDF},
  issn = {1063-7869},
  owner = {joao},
  publisher = {Turpion Ltd},
  timestamp = {2010.11.29}
}

@ARTICLE{kapikranian2008interplay,
  author = {O. Kapikranian and B. Berche and Y. Holovatch},
  title = {Interplay of topological and structural defects in the two-dimensional
	XY model},
  journal = {Physics Letters A},
  year = {2008},
  volume = {372},
  pages = {5716--5721},
  number = {35},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Kapikranian(2008)Interplay of topological and structural defects in the two-dimensional X Y model.pdf:PDF},
  owner = {joao},
  publisher = {Elsevier},
  timestamp = {2010.01.11}
}

@ARTICLE{kapitza1938viscosity,
  author = {Kapitza, P.},
  title = {{Viscosity of liquid helium below the-point}},
  journal = {Nature},
  year = {1938},
  volume = {141},
  pages = {74},
  number = {3558},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Experimental/0-1984/Kapitza(1938)Viscosity of liquid helium below the-point.pdf:PDF},
  owner = {joao},
  timestamp = {2010.11.04}
}

@ARTICLE{kenna2005xy,
  author = {Kenna, R.},
  title = {The XY Model and the Berezinskii-Kosterlitz-Thouless Phase Transition},
  journal = {Arxiv preprint cond-mat/0512356},
  year = {2005},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Kenna(2005)The XY Model and the Berezinskii-Kosterlitz-Thouless PhaseTransition.pdf:PDF},
  owner = {joao},
  timestamp = {2010.08.22}
}

@ARTICLE{kenna1997kosterlitz,
  author = {Kenna, R. and Irving, AC},
  title = {The Kosterlitz-Thouless universality class},
  journal = {Nuclear Physics B},
  year = {1997},
  volume = {485},
  pages = {583--612},
  number = {3},
  abstract = {We examine the Kosterlitz-Thouless universality class and show that
	essential scaling at this type of phase transition is not self-consistent
	unless multiplicative logarithmic corrections are included. In the
	case of specific heat these logarithmic corrections are identified
	analytically. To identify those corresponding to the susceptibility
	we set up a numerical method involving the finite-size scaling of
	Lee-Yang zeroes. We also study the density of zeroes and introduce
	a new concept called index scaling. We apply the method to the XY
	model and the c]osely related step model in two dimensions. The critical
	parameters (including logarithmic corrections) of the step model
	are compatible with those of the XY model indicating that both models
	belong to the same universality class. This result then raises questions
	over how a vortex binding scenario can be the driving mechanism for
	the phase transition. Furthermore, the logarithmic corrections identified
	numerically by our methods of fitting are not in agreement with the
	renormalization group predictions of Kosterlitz and Thouless.},
  doi = {10.1016/S0550-3213(96)00642-6},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Kenna(1997)The Kosterlitz-Thouless universality class.pdf:PDF},
  owner = {joao},
  publisher = {Elsevier},
  timestamp = {2010.08.01}
}

@ARTICLE{kierstead1979phase,
  author = {Kierstead, H.A.},
  title = {Phase diagram and concentration susceptibility of $^3$He- $^4$He
	mixtures near the tricritical point},
  journal = {Journal of Low Temperature Physics},
  year = {1979},
  volume = {35},
  pages = {25--39},
  number = {1},
  abstract = {sem pdf
	
	
	The inverse concentration susceptibility (partPHgr/part\x) T of 3He-4He
	mixtures has been calculated from high-resolution vapor-pressure
	measurements and in situ measurements of the dielectric constant
	very close to the tricritical point. The measurements have been fitted
	to a scaling-law equation of state. In the normal fluid a logarithmic
	correction term was necessary to obtain a good fit. In the superfluid
	a regular correction term, proportional to (x – x t)2, was evaluated.
	New measurements of the phase-separation curve confirm our earlier
	measurements on the 3He-rich side and extend the measurements much
	closer to the tricritical point on the 4He-rich side. The tricritical
	point is at temperature T = 0.8669 ± 0.0005 K and mole fraction x
	= 0.6716 ± 0.0014.},
  doi = {10.1007/BF00121720},
  owner = {joao},
  publisher = {Springer},
  timestamp = {2010.08.24}
}

@ARTICLE{kim1996phase,
  author = {Kim, J.K.},
  title = {Phase transition in the two-dimensional classical XY model},
  journal = {Physics Letters A},
  year = {1996},
  volume = {223},
  pages = {261--266},
  number = {4},
  abstract = {For the two-dimensional classical XY model we present extensive high-temperature-phase
	bulk data extracted based on a novel finite size scaling (FSS) Monte
	Carlo technique, along with FSS data near criticality. Our data verify
	that η = 1/4 sets in near criticality, and clarify the nature of
	correction to the leading scaling behavior. However, the result of
	standard FSS analysis near criticality is inconsistent with other
	predictions of Kosterlitz's renormalization group approach.
	
	
	Para o modelo XY clássico bidimensional apresentamos dados extensa
	massa de alta temperatura fase extraído baseado em um romance de
	escala de tamanho finito (FSS), técnica de Monte Carlo, junto com
	dados FSS perto de criticidade. Nossos dados verificar se η = 1 /
	4 conjuntos de criticidade próximo, e esclarecer a natureza de correcção
	para o comportamento de dimensionamento de liderança. No entanto,
	o resultado da análise FSS padrão perto de criticidade é incompatível
	com outras previsões do grupo de renormalização Kosterlitz abordagem.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Jae-Kwon Kim(1996)Phase transition in the two-dimensional classical XY model.pdf:PDF},
  owner = {joao},
  publisher = {Elsevier},
  timestamp = {2010.08.01}
}

@ARTICLE{kim1993application,
  author = {Kim, J.K.},
  title = {Application of finite size scaling to Monte Carlo simulations},
  journal = {Physical review letters},
  year = {1993},
  volume = {70},
  pages = {1735--1738},
  number = {12},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/(1993)Application of Finite Size Scaling to Monte Carlo Simulations.pdf:PDF},
  owner = {joao},
  publisher = {APS},
  timestamp = {2010.01.16}
}

@ARTICLE{PhysRevLett.86.1558,
  author = {Kimball, Mark O. and Gasparini, Francis M.},
  title = {Superfluid Fraction of $^{3}He-^{4}He$ Mixtures Confined at $0.0483
	\mu{}m$ between Silicon Wafers},
  journal = {Phys. Rev. Lett.},
  year = {2001},
  volume = {86},
  pages = {1558--1561},
  number = {8},
  month = {Feb},
  abstract = {We report measurements of the superfluid fraction ρs/ρ of films of
	3He-4He mixtures confined between silicon wafers at 0.0483μm separation.
	The data obtained using adiabatic fountain resonance (AFR) can be
	used to test for the first time expectations of correlation-length
	scaling in the case of planar mixtures. For the mixtures, the data
	for ρs/ρ collapse well on a universal function. The dissipation associated
	with AFR can also be scaled, and indicates two-dimensional crossover.
	These results are in contrast to pure 4He, where over a wider range
	of confinements, the data for ρs/ρ are found not to scale.},
  doi = {10.1103/PhysRevLett.86.1558},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/Kimball(2001)Superfluid Fraction of 3 He-4 He Mixtures Confined at 0.0483 mm between Silicon Wafers.pdf:PDF},
  numpages = {3},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.12.19}
}

@ARTICLE{kosterlitz1974critical,
  author = {JM Kosterlitz},
  title = {The critical properties of the two-dimensional xy model},
  journal = {Journal of Physics C: Solid State Physics},
  year = {1974},
  volume = {7},
  pages = {1046--1060},
  abstract = {The critical properties of the xy model with nearest-neighbour interactions
	on a two-dimensional square lattice are studied by a renormalization
	group technique. The mean magnetization is zero for all temperatures,
	and the transition is from a state of finite to one of infinite susceptibility.
	The correlation length is found to diverge faster than any power
	of the deviation from the critical temperature. Analogues of the
	strong scaling laws are derived and the critical exponents, eta ,
	and delta , are the same as for the two-dimensional Ising mode},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/(1974)The critical properties of the two-dimensional xy model.pdf:PDF},
  owner = {joao},
  publisher = {Institute of Physics Publishing},
  timestamp = {2010.01.06}
}

@ARTICLE{kosterlitz1973ordering,
  author = {Kosterlitz, J.M. and Thouless, D.J.},
  title = {Ordering, metastability and phase transitions in two-dimensional
	systems},
  journal = {Journal of Physics C: Solid State Physics},
  year = {1973},
  volume = {6},
  pages = {1181},
  abstract = {A new definition of order called topological order is proposed for
	two-dimensional systems in which no long-range order of the conventional
	type exists. The possibility of a phase transition characterized
	by a change in the response of the system to an external perturbation
	is discussed in the context of a mean field type of approximation.
	The critical behaviour found in this model displays very weak singularities.
	The application of these ideas to the xy model of magnetism, the
	solid-liquid transition, and the neutral superfluid are discussed.
	This type of phase transition cannot occur in a superconductor nor
	in a Heisenberg ferromagnet.},
  doi = {10.1088/0022-3719/6/7/010},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/Kosterlit Thouless(1973)Ordering, metastability and phase transitions in two-dimensional systems.pdf:PDF},
  owner = {joao},
  publisher = {IOP Publishing},
  timestamp = {2010.07.26}
}

@ARTICLE{koyama1987spontaneous,
  author = {Koyama, K. and Nobumasa, H. and Matsuura, M.},
  title = {{Spontaneous staggered magnetization of two-dimensional Heisenberg
	like antiferromagnet with canting interaction}},
  journal = {Journal of the Physical Society of Japan},
  year = {1987},
  volume = {56},
  pages = {1553--1561},
  number = {4},
  abstract = {sem pdf
	
	
	
	Proton NMR of two-dimensional Heisenberg like antiferromagnets Cu(HCOO)2·2CO(ND2)2·2D2O
	(CuFUD) and the isostructural Cu(HCOO)2·4D2O (CUF4D) are examined
	in detail near and below the transition temperature TN. By eliminating
	the effect of field inducd magnetization due to the canting mechanism,
	the very growing feature of spontaneous staggered magnetization L0
	below TN is observed. For CuFUD, a single exponential law with β=0.22
	is obtained in the whole measured temperature range. For CuF4D, however,
	a crossover phenomenon is observed. β=0.22 for ε(=1-T/TN)>ε*(=5×10-2)
	and β=0.30 for ε<ε*. Comparing the results for CuFUD and for CuF4D,
	a possible origin for such a novel critical index is discussed. ©1987
	The Physical Society of Japan},
  doi = {10.1143/JPSJ.56.1553},
  issn = {0031-9015},
  owner = {joao},
  publisher = {Institute of Pure and Applied Physics},
  timestamp = {2010.12.07}
}

@ARTICLE{Krech1998,
  author = {M Krech and Alex Bunker and D. P. Landau},
  title = {Fast spin dynamics algorithms for classical spin systems},
  journal = {Comput. Phys. Commun.},
  year = {1998},
  volume = {111},
  pages = {1-13},
  number = {1},
  abstract = {We have proposed new algorithms for the numerical integration of the
	equations of motion for classical spin systems. In close analogy
	to symplectic integrators for Hamiltonian equations of motion used
	in Molecular Dynamics, these algorithms are based on the Suzuki-Trotter
	decomposition of exponential operators and unlike more commonly used
	algorithms exactly conserve spin length and, in special cases, energy.
	Using higher order decompositions we investigate integration schemes
	of up to fourth order and compare them to a well-established fourth
	order predictor-corrector method. We demonstrate that these methods
	can be used with much larger time steps than the predictor-corrector
	method and thus may lead to a substantial speedup of computer simulations
	of the dynamical behavior of magnetic materials.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Krech(1998)Fast spin dynamics algorithms for classical spin systems.pdf:PDF},
  owner = {Jo{\~a}o Batista},
  url = {http://dx.doi.org/10.1016/S0010-4655(98)00009-5}
}

@ARTICLE{PhysRevB.60.3375,
  author = {M Krech and D. P. Landau},
  title = {Spin-dynamics simulations of the three-dimensional $XY$ model: Structure
	factor and transport properties},
  journal = {Phys. Rev. B},
  year = {1999},
  volume = {60},
  pages = {3375--3387},
  number = {5},
  month = {Aug},
  doi = {10.1103/PhysRevB.60.3375},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/(1999)Spin-dynamics simulations of the three-dimensional XY model Structure factor and transport properties.pdf:PDF},
  numpages = {12},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.01.06}
}

@ARTICLE{PhysRevB.38.111,
  author = {Krotscheck, E. and Saarela, M. and Epstein, J. L.},
  title = {Impurity states in liquid-helium films},
  journal = {Phys. Rev. B},
  year = {1988},
  volume = {38},
  pages = {111--128},
  number = {1},
  month = {Jul},
  abstract = {We study the properties of impurity atoms of 3He and spin-polarized
	hydrogen isotopes in films of liquid 4He adsorbed to a substrate.
	We find that a 3He impurity has three or more bound states, two of
	which we associate with surface states. Hydrogen atoms are very weakly
	bound and have only one bound state. Depending on the thickness of
	the film, deuterium impurities may form two surface bound states,
	or may penetrate to the substrate. For all cases studied, tritium
	impurities also tend to penetrate to the substrate. We develop the
	theory of the formation of ‘‘self-bound’’ or ‘‘polaron’’ states,
	but we see no evidence that such states can become energetically
	favorable.},
  doi = {10.1103/PhysRevB.38.111},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/Krotscheck(1988)Impurity states in liquid-helium films.pdf:PDF},
  numpages = {17},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.09.07}
}

@ARTICLE{landau1999computer,
  author = {Landau, DP},
  title = {Computer simulation studies of magnetic phase transitions},
  journal = {Journal of Magnetism and Magnetic Materials},
  year = {1999},
  volume = {200},
  pages = {231--247},
  number = {1-3},
  abstract = {The advancements which have been made in the use of computer simulations
	to study magnetic-phase transitions and critical phenomena are reviewed.
	We describe how the use of a combination of sophisticated Monte Carlo
	simulation algorithms and reweighting (histogram) techniques have
	allowed the determination of the static critical behavior with unprecedented
	precision. The study of “dynamic” critical behavior in simple spin
	models by both Monte Carlo and spin dynamics methods is also reviewed.
	Recent estimates for dynamic critical exponents are given including
	those for true dynamics.
	
	
	Os avanços que foram feitos no uso de simulações em computador para
	estudar transições de fase magnéticas e fenômenos críticos são revistos.
	Nós descrevemos como o uso de uma sofisticada combinação de algoritmos
	de simulação Monte Carlo e reponderação histograma () As técnicas
	permitiram a determinação do comportamento estático crítico com uma
	precisão sem precedentes. O estudo do "comportamento" dinâmico críticos
	em modelos de spin simples por ambos Monte Carlo e os métodos de
	rotação dinâmica também é revisto. Estimativas recentes para dinâmico
	expoentes críticos são dadas, incluindo aqueles para a dinâmica da
	realidade.},
  doi = {10.1016/S0304-8853(99)00309-1},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Landau(1999)Computer simulation studies of magnetic phase transitions .pdf:PDF},
  owner = {joao},
  publisher = {Elsevier},
  timestamp = {2010.08.01}
}

@BOOK{Landau2004,
  title = { A Guide to Monte Carlo Simulations in Statistical Physics},
  publisher = {Cambridge University Press, Cambridge},
  year = {2004},
  author = {D. P. Landau and Kurt Binder},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/Livros/Landau - A Guide to Monte Carlo Simulations in Statistical Physics, 2nd Edition.[2005.ISBN0521842387].pdf:PDF},
  owner = {Jo{\~a}o Batista}
}

@ARTICLE{Landau1999,
  author = {D. P. Landau and M Krech},
  title = {Spin dynamics simulations of classical ferro- and antiferromagnetic
	model systems: comparison with theory and experiment},
  journal = {J. Phys. Condens. Matter},
  year = {1999},
  volume = {11},
  pages = {179 213},
  abstract = {In this article we review the progress which has been made in spin
	dynamics simulations of simple models of magnetic systems. We will
	describe modern spin dynamics methods and show results which have
	been obtained for a number of simple model systems. Where appropriate
	we will make comparison with experimental results and theoretical
	predictions.},
  doi = {10.1088/0953-8984/11/18/201},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Landau(1999)Spin dynamics simulations of classical ferro- and antiferromagnetic model systems\: comparison with theory and experiment.pdf:PDF},
  owner = {Jo{\~a}o Batista}
}

@ARTICLE{landau1937second,
  author = {Landau, LD and Lifschitz, EM},
  title = {{Second order phase transitions}},
  journal = {Phys. Z. Sowjet},
  year = {1937},
  volume = {11},
  pages = {545--563},
  abstract = {sem pdf 
	
	sem resumo},
  owner = {joao},
  timestamp = {2011.01.09}
}

@ARTICLE{PhysRevLett.29.1227,
  author = {Leggett, A. J.},
  title = {Interpretation of Recent Results on $^3$He below $3mK$: A New Liquid
	Phase ?},
  journal = {Phys. Rev. Lett.},
  year = {1972},
  volume = {29},
  pages = {1227--1230},
  number = {18},
  month = {Oct},
  note = {baixado artigo que garantil nobel},
  abstract = {It is demonstrated that recent NMR results in 3He indicate that at
	2.65 mK, the liquid makes a second-order transition to a phase in
	which the "spin-orbit" symmetry is spontaneously broken. The hypothesis
	that this phase is a BCS-type phase in which pairs form with l odd,
	S=1, Sz=±1 leads to reasonable agreement with both NMR and thermodynamic
	data, but involves some difficulties as to stability.},
  doi = {10.1103/PhysRevLett.29.1227},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/Leggett(1972)Interpretation of Recent Results on $He^{3}$ below 3 mK\: A New Liquid Phase.pdf:PDF},
  numpages = {3},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.09.06}
}

@ARTICLE{PhysRev.140.A1869,
  author = {Leggett, A. J.},
  title = {Theory of a Superfluid Fermi Liquid. I. General Formalism and Static
	Properties},
  journal = {Phys. Rev.},
  year = {1965},
  volume = {140},
  pages = {A1869--A1888},
  number = {6A},
  month = {Dec},
  abstract = {The microscopic theory of a superfluid Fermi liquid at finite temperature
	is developed for the case of a pure system with S-wave pairing, and
	applied to the calculation of the static properties. As a function
	of θ≡T/Tc these properties are determined entirely by the Landau
	parameters F0, F1, Z0, etc., characterizing quasiparticle interactions
	in the normal phase. In particular the spin susceptibility χ and
	the density of the normal component ρn are given by χ(θ)/χ(1)=(1+1/4Z0)f(θ)/[1+1/4Z0f(θ)],
	ρn/ρ=(1+1/3F1)f(θ)/[1+1/3F1f(θ)], where the universal function f(θ)≡-[ν(0)]-1Σp(dn/dEp)
	is the "effective density of states near the Fermi surface" relative
	to its value ν(0) in the normal phase. Thus the often-quoted expression
	ρn=1/3Σpp2(dn/dEp) is valid for an interacting system only in the
	limit T→0. In the latter part of the paper a simple phenomenological
	theory of "Fermi-liquid" effects on χ and ρn is developed for arbitrary
	conditions (including the presence of impurities and pairing with
	l≠0); it is found that under most circumstances explicit expressions
	for χ and ρn may be obtained which involve only the Landau parameters
	and a suitably generalized effective density of states. The theory
	should apply to the possible superfluid phase of He3 and to most
	superconductors. It is suggested that the Knight shift in nontransition-metal
	superconductors should display some "Fermi-liquid" effects. The weak-field
	dc penetration depth λ(T) is shown to be insensitive to such effects
	both in the Pippard limit and near Tc; however, in a London superconductor
	at lower temperatures the correction to λ(T) should be observable
	and yield a direct estimate of F1.},
  doi = {10.1103/PhysRev.140.A1869},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/Leggett(1965)Theory of a Superfluid Fermi Liquid. I. General Formalism and Static Properties.pdf:PDF},
  numpages = {19},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.09.06}
}

@ARTICLE{leonel2003monte,
  author = {SA Leonel and P.Z. Coura and AR Pereira and LAS M{\'o}l and BV Costa},
  title = {Monte Carlo study of the critical temperature for the planar rotator
	model with nonmagnetic impurities},
  journal = {Phys. Rev. B},
  year = {2003},
  volume = {67},
  pages = {104426},
  number = {10},
  abstract = {We performed Monte Carlo simulations to calculate the Berezinskii-Kosterlitz-Thouless
	(BKT) temperature TBKT for the two-dimensional planar rotator model
	in the presence of nonmagnetic impurity concentration (ρ). As expected,
	our calculation shows that the BKT temperature decreases as the spin
	vacancies increase. There is a critical dilution ρc≈0.3 at which
	TBKT=0. The effective interaction between a vortex-antivortex pair
	and a static nonmagnetic impurity is studied analytically. A simple
	phenomenological argument based on the pair-impurity interaction
	is proposed to justify the simulations.},
  doi = {10.1103/PhysRevB.67.104426},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/Leonel(2003)Monte Carlo study of the critical temperature for the planar rotator model with nonmagnetic impurities.pdf:PDF},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.01.11}
}

@ARTICLE{lepri2001finite,
  author = {Lepri, S. and Ruffo, S.},
  title = {{Finite-size effects on the Hamiltonian dynamics of the XY-model}},
  journal = {EPL (Europhysics Letters)},
  year = {2001},
  volume = {55},
  pages = {512},
  abstract = {The dynamical properties of the finite-size magnetization M in the
	critical region T ≤ TKTB of the planar rotor model on a L×L square
	lattice are analyzed by means of microcanonical simulations. The
	behavior of the q = 0 structure factor at high frequencies is consistent
	with field-theoretical results, but new additional features occur
	at lower frequencies. The motion of M determines a region of spectral
	lines and the presence of a central peak, which we attribute to phase
	diffusion. Near TKTB the diffusion constant scales with system size
	as D ~ L−1.6(3).},
  doi = {10.1209/epl/i2001-00445-5},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/Lepri(2001)Finite-size effects on the Hamiltonian dynamics of the XY -model.pdf:PDF},
  owner = {joao},
  publisher = {IOP Publishing},
  timestamp = {2010.12.06}
}

@ARTICLE{li1989finite,
  author = {Y.H. Li and S. Teitel},
  title = {Finite-size scaling study of the three-dimensional classical XY model},
  journal = {Phys. Rev. B},
  year = {1989},
  volume = {40},
  pages = {9122--9125},
  number = {13},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/(1989)Finite-size scaling study of the three-dimensional classical XY model'.pdf:PDF},
  publisher = {American Physical Society}
}

@ARTICLE{PhysRevB.68.174518,
  author = {Lipa, J. A. and Nissen, J. A. and Stricker, D. A. and Swanson, D.
	R. and Chui, T. C. P.},
  title = {Specific heat of liquid helium in zero gravity very near the lambda
	point},
  journal = {Phys. Rev. B},
  year = {2003},
  volume = {68},
  pages = {174518},
  number = {17},
  month = {Nov},
  abstract = {We report the details and revised analysis of an experiment to measure
	the specific heat of helium with subnanokelvin temperature resolution
	near the lambda point. The measurements were made at the vapor pressure
	spanning the region from 22 mK below the superfluid transition to
	4μK above. The experiment was performed in Earth orbit to reduce
	the rounding of the transition caused by gravitationally induced
	pressure gradients on Earth. Specific-heat measurements were made
	deep in the asymptotic region to within 2 nK of the transition. No
	evidence of rounding was found to this resolution. The optimum value
	of the critical exponent describing the specific-heat singularity
	was found to be α=-0.0127±0.0003. This is bracketed by two recent
	estimates based on renormalization-group techniques, but is slightly
	outside the range of the error of the most recent result. The ratio
	of the coefficients of the leading-order singularity on the two sides
	of the transition is A+/A-=1.053±0.002, which agrees well with a
	recent estimate. By combining the specific-heat and superfluid density
	exponents a test of the Josephson scaling relation can be made. Excellent
	agreement is found based on high-precision measurements of the superfluid
	density made elsewhere. These results represent the most precise
	tests of theoretical predictions for critical phenomena to date.},
  doi = {10.1103/PhysRevB.68.174518},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Experimental/2005-2010/Lipa(2003)Specific heat of liquid helium in zero gravity very near the lambda point.pdf:PDF},
  numpages = {25},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.12.18}
}

@ARTICLE{Lipa1996,
  author = {J. A. Lipa and D. R. Swanson and J. A. Nissen and T. C. P. Chui and
	U. E. Israelsson},
  title = {Heat Capacity and Thermal Relaxation of Bulk Helium very near the
	Lambda Point},
  journal = {Phys. Rev. Lett.},
  year = {1996},
  volume = {76},
  pages = {944--947},
  number = {76944},
  note = {12f},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Experimental/1995-1999/(1996)Heat Capacity and Thermal Relaxation of Bulk Helium very near the Lambda Point.pdf:PDF},
  owner = {Jo{\~a}o Batista}
}

@ARTICLE{PhysRevLett.84.4894,
  author = {Lipa, J. A. and Swanson, D. R. and Nissen, J. A. and Geng, Z. K.
	and Williamson, P. R. and Stricker, D. A. and Chui, T. C. P. and
	Israelsson, U. E. and Larson, M. },
  title = {Specific Heat of Helium Confined to a 57- $\mu{}m$ Planar Geometry
	near the Lambda Point},
  journal = {Phys. Rev. Lett.},
  year = {2000},
  volume = {84},
  pages = {4894--4897},
  number = {21},
  month = {May},
  abstract = {We report measurements of the specific heat of liquid helium confined
	to 57-μm planar gaps extending to within a few nanokelvin of the
	bulk lambda transition. The data are in fair agreement with Monte
	Carlo estimates for finite-size effects and with renormalization-group-theory
	predictions above the transition. Far from the transition, we find
	surface specific heat exponents, αs = 0.64±0.05 below, and 0.65±0.2
	above, which compare well with the prediction of 0.658. Comparison
	with other recent data on small length scales shows some areas of
	agreement.},
  doi = {10.1103/PhysRevLett.84.4894},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/Lipa(2000)Specific Heat of Helium Confined to a 57-mm Planar Geometry near the Lambda Point.pdf:PDF},
  numpages = {3},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.12.18}
}

@BOOK{liu2005handbook,
  title = {Handbook of advanced magnetic materials},
  publisher = {Springer},
  year = {2005},
  author = {Liu, Y. and Shind{\=o}, D. and Sellmyer, D.J.},
  volume = {1},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/Livros/Materials.pdf:PDF;:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/Livros/Materials.pdf:PDF},
  owner = {joao},
  timestamp = {2010.01.26}
}

@ARTICLE{0953-8984-11-34-101,
  author = {D Loison},
  title = {Binder's cumulant for the Kosterlitz-Thouless transition},
  journal = {Journal of Physics: Condensed Matter},
  year = {1999},
  volume = {11},
  pages = {L401},
  number = {34},
  abstract = {It is shown that Binder's cumulant U = 1- ##IMG## [http://ej.iop.org/icons/common/langle.gif]
	{langle} M 4 ##IMG## [http://ej.iop.org/icons/common/rangle.gif]
	{rangle} / 3 ##IMG## [http://ej.iop.org/icons/common/langle.gif]
	{langle} M 2 ##IMG## [http://ej.iop.org/icons/common/rangle.gif]
	{rangle} 2 is very useful in the study of the Kosterlitz-Thouless
	transition of two-dimensional XY systems. It is possible to calculate
	the critical exponent ##IMG## [http://ej.iop.org/icons/common/eta.gif]
	{eta} without knowledge of the critical temperature, and to exclude
	the possibility of a power law behaviour.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Loison(1999)Binder’s cumulant for the Kosterlitz–Thouless transition.pdf:PDF},
  owner = {joao},
  timestamp = {2010.12.25},
  url = {http://stacks.iop.org/0953-8984/11/i=34/a=101}
}

@ARTICLE{PhysRevB.78.184519,
  author = {Loois, C. C. and Barkema, G. T. and Smith, C. Morais},
  title = {Monte Carlo studies of extensions of the Blume-Emery-Griffiths model},
  journal = {Phys. Rev. B},
  year = {2008},
  volume = {78},
  pages = {184519},
  number = {18},
  month = {Nov},
  abstract = {We extend the Blume-Emery-Griffiths (BEG) model to a two-component
	BEG model in order to study two-dimensional systems with two order
	parameters, such as magnetic superconductors or two-component Bose-Einstein
	condensates. The model is investigated using Monte Carlo simulations,
	and the temperature-concentration phase diagram is determined in
	the presence and absence of an external magnetic field. This model
	exhibits a rich phase diagram, including a second-order transition
	to a phase where superconductivity and magnetism coexist. Results
	are compared with experiments on cerium-based heavy-fermion superconductors.
	To study cold-atom mixtures, we also simulate the BEG and two-component
	BEG models with a trapping potential. In the BEG model with a trap,
	there is no longer a first-order transition to a true phase-separated
	regime but a crossover to a kind of phase-separated region. The relation
	with imbalanced Fermi mixtures is discussed. We present the phase
	diagram of the two-component BEG model with a trap, which can describe
	boson-boson mixtures of cold atoms. Although there are no experimental
	results yet for the latter, we hope that our predictions could help
	to stimulate future experiments in this direction.},
  doi = {10.1103/PhysRevB.78.184519},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Loois(2008)Monte Carlo studies of extensions of the Blume-Emery-Griffiths model.pdf:PDF},
  numpages = {9},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.11.29}
}

@MASTERSTHESIS{loois2008monte,
  author = {Loois, M.},
  title = {{Monte Carlo studies of the two-component Blume-Emery-Griffiths model}},
  school = {Institute for Theoretical Physics Utrecht University},
  year = {2008},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/Teses/(2008)Monte Carlo studies of the two-component Blume-Emery-Griffiths model.pdf:PDF},
  owner = {joao},
  timestamp = {2010.11.29}
}

@ARTICLE{Maciolek2007,
  author = {Macio\l{}ek, A. and Gambassi, A. and Dietrich, S.},
  title = {Critical Casimir effect in superfluid wetting films},
  journal = {Phys. Rev. E},
  year = {2007},
  volume = {76},
  pages = {031124},
  number = {3},
  month = {Sep},
  abstract = {Recent experimental data for the complete wetting behavior of pure
	4He and of 3He- 4He mixtures exposed
	
	to solid substrates show that there is a change of the corresponding
	film thicknesses L upon approaching
	
	thermodynamically the ␭ transition and the tricritical end point,
	respectively, which can be attributed to critical
	
	Casimir forces f C. We calculate the scaling functions ␽ of f C within
	models representing the corresponding
	
	universality classes. For the mixtures our analysis provides an understanding
	of the rich behavior of ␽ deduced
	
	from the experimental data and predicts the crossover behavior between
	the tricritical point and the ␭ transition
	
	of pure 4He which are connected by a line of critical points. The
	formation of a “soft-mode” phase within the
	
	wetting films gives rise to a pronounced maximum of f C below the
	tricritical point as observed experimentally.
	
	Near the tricritical point we find logarithmic corrections ϳL−3͑ln
	L͒1/2 for the leading behavior of ␽ dominat-
	
	ing the contributions from the background dispersion forces.},
  doi = {10.1103/PhysRevE.76.031124},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/A. Maciołek A. Gambassi, and S. Dietrich(2007)Critical Casimir effect in superfluid wetting films .pdf:PDF},
  numpages = {17},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.06.28}
}

@ARTICLE{Maciolek2004,
  author = {A. Maciolek and M Krech and S. Dietrich},
  title = {Phase diagram of a model for $^3$He- $^4$He mixtures in three dimensions},
  journal = {Phys. Rev. E},
  year = {2004},
  volume = { 69},
  pages = {036117-1-- 036117-17},
  number = {036117},
  note = {21},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/(2004)Phase diagram of a model for 3He 4He mixtures in three dimensions.pdf:PDF},
  owner = {Jo{\~a}o Batista}
}

@ARTICLE{maciolek2006critical,
  author = {Macio{\l}ek, A. and Dietrich, S.},
  title = {Critical Casimir effect in $^3$He-$^4$He films},
  journal = {EPL (Europhysics Letters)},
  year = {2006},
  volume = {74},
  pages = {22},
  doi = {10.1209/epl/i2005-10497-y},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/(artigo pub 2006) A. Macio lek and S. Dietrich(2005)Critical Casimir Effect in 3He -4He films.pdf:PDF;:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/A. Maciolek and S. Dietrich(2006)Critical Casimir effect in 3He-4He films.pdf:PDF},
  owner = {joao},
  publisher = {IOP Publishing},
  timestamp = {2010.06.28}
}

@ARTICLE{marsaglia1972choosing,
  author = {Marsaglia, G.},
  title = {Choosing a point from the surface of a sphere},
  journal = {The Annals of Mathematical Statistics},
  year = {1972},
  volume = {43},
  pages = {645--646},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/Marsaglia(1972)Choosing a point from the surface of a sphere.pdf:PDF},
  owner = {joao},
  publisher = {JSTOR},
  timestamp = {2010.08.24},
  url = {http://www.jstor.org/stable/2240001}
}

@ARTICLE{martins2007universality,
  author = {PHL Martins and J. A. PIascak},
  title = {Universality class of the two-dimensional site-diluted Ising model},
  journal = {Physical Review E},
  year = {2007},
  volume = {76},
  pages = {12102},
  number = {1},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/(2007)Universality class of the two-dimensional site-diluted Ising model.pdf:PDF},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.01.03}
}

@ARTICLE{matsubara1956lattice,
  author = {Matsubara, T. and Matsuda, H.},
  title = {A lattice model of liquid helium, I},
  journal = {Progress of Theoretical Physics},
  year = {1956},
  volume = {16},
  pages = {569--582},
  abstract = {sem pdf livre, importante
	
	
	A lattice model is proposed in order to explain the peculiar properties
	of liquid helium II. In the present model, liquid is regarded as
	a lattice composed of atoms and holes. Each atom can migrate by exchanging
	its position with an adjacent hole if the latter exists. In terms
	of operators which create or annihilate an atom at each lattice point,
	the kinetic and potential energies are defined so as to have a correct
	form in the limit of vanishing lattice spacing. Then it is proved
	that the grand partition function of our lattice liquid is equal
	to the partition function of a system of vector spins subjected to
	an external magnetic field, provided a proper identification is made
	between corresponding quantities of both systems. Various approximation
	methods used in the problem of ferromagnets are appliciable and enable
	us to attain the results which explain most of the characteristic
	features of liquid helium.},
  doi = {10.1143/PTP.16.569},
  owner = {joao},
  timestamp = {2010.06.15}
}

@ARTICLE{Mermin1966,
  author = {Mermin, N. D. and Wagner, H.},
  title = {Absence of Ferromagnetism or Antiferromagnetism in One- or Two-Dimensional
	Isotropic Heisenberg Models},
  journal = {Phys. Rev. Lett.},
  year = {1966},
  volume = {17},
  pages = {1133-1136},
  number = {22},
  month = {Nov},
  doi = {10.1103/PhysRevLett.17.1133},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/Mermint and Wagnert(1966)ABSENCE OF FERROMAGNETISM OR ANTIFERROMAGNETISM IN ONE OR TWODIMENSIONAL ISOTROPIC HEISENBERG MODELS.pdf:PDF},
  numpages = {3},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.06.24}
}

@ARTICLE{metropolis1953w,
  author = {Metropolis, N.},
  title = {A. W. Rosenbluth, MN Rosenbluth, AH Teller, and E. Teller},
  journal = {J. Chem. Phys},
  year = {1953},
  volume = {21},
  pages = {1087},
  abstract = {sem pdf},
  owner = {joao},
  timestamp = {2010.09.16}
}

@ARTICLE{mitchell1986critical,
  author = {PW Mitchell and RA Cowley and H. Yoshizawa and P. B{\{\"o}}ni and
	YJ Uemura and RJ Birgeneau},
  title = {Critical behavior of the three-dimensional site-random Ising magnet:
	Mn$_x$Zn${1-x}$F$_2$},
  journal = {Phys. Rev. B},
  year = {1986},
  volume = {34},
  pages = {4719--4725},
  number = {7},
  abstract = {Neutron scattering has been used to study the critical behavior of
	the site-random Ising system, MnxZn1-xF2, for x=0.75 and 0.50. With
	the x=0.75 sample, which is of particularly high quality, measurements
	were possible over nearly three decades, 4×10-4<‖t‖<2×10-1 both above
	and below TN; the resulting exponents are ν=ν’=0.715±0.035 and γ=γ’=1.364±0.076,
	and the corresponding amplitude ratios are 0.69±0.02 and 2.45±0.15,
	respectively. These agree well with values obtained in FexZn1-xF2
	for x=0.46 and 0.50 and with theoretical predictions for the random
	exchange Ising model. With the x=0.5 sample, high-energy resolution
	scans were carried out in the critical region below TN; these experiments
	indicate that the predicted elastic Lorentzian-squared scattering
	is too small in magnitude to be measured and specifically that it
	does not affect the amplitude ratios given above.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Experimental/1985-1994/(1986)Critical behavior of the three-dimensional site-random Ising magnet MnxZnt-xF2.pdf:PDF},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.01.02},
  url = {http://link.aps.org/doi/10.1103/PhysRevB.34.4719}
}

@ARTICLE{PhysRevB.23.5824,
  author = {Mon, K. K. and Saam, W. F.},
  title = {Phase diagrams of a model for two-layer $^{3}He$-$^{4}He$ mixture
	films},
  journal = {Phys. Rev. B},
  year = {1981},
  volume = {23},
  pages = {5824--5833},
  number = {11},
  month = {Jun},
  note = {Multicamada de misturas de he bom},
  abstract = {We present a Migdal-Kadanoff renormalization-group scheme for a model
	two-layer classical XY system with annealed impurities. The model
	Hamiltonian is appropriate for a two-layer 3He-4He mixture system.
	We find a rich variety of phase diagrams. Depending on the choice
	of parameters we find either one or two first-order phase-separation
	transitions, which may be accompanied by the appearance of superfluidity.
	Phase diagrams with two λ lines are found, making possible two distinct
	transitions in the superfluid density. In the case of phase-separation
	transitions, each transition is primarily associated with a single
	layer, and three-phase coexistence is possible. Comparison with recent
	experiments is made.},
  doi = {10.1103/PhysRevB.23.5824},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/Mon(1981)Phase diagrams of a model for two-layer $^{3}He$-$^{4}He$ mixture films.pdf:PDF},
  numpages = {9},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.09.07}
}

@ARTICLE{more1978levenberg,
  author = {More, J.},
  title = {The Levenberg-Marquardt algorithm: implementation and theory},
  journal = {Numerical analysis},
  year = {1978},
  volume = {1},
  pages = {105--116},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/(1978)The Levenberg-Marquardt algorithm\: implementation and theory.pdf:PDF},
  owner = {joao},
  publisher = {Springer},
  timestamp = {2010.07.03}
}

@BOOK{mussardo2009statistical,
  title = {Statistical Field Theory: An Introduction to Exactly Solved Models
	in Statistical Physics},
  publisher = {Oxford University Press, USA},
  year = {2009},
  author = {Mussardo, G.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/Livros/Statistical Field Theory An Introduction to Exactly Solved Models in Statistical Physics.pdf:PDF},
  owner = {joao},
  timestamp = {2010.08.11}
}

@ARTICLE{PhysRevB.16.4945,
  author = {Nelson, David R. and Fisher, Daniel S.},
  title = {Dynamics of classical XY spins in one and two dimensions},
  journal = {Phys. Rev. B},
  year = {1977},
  volume = {16},
  pages = {4945--4955},
  number = {11},
  month = {Dec},
  abstract = {We suggest that low-temperature spin waves in classical spin systems
	can be understood in terms of a "fixed-length" hydrodynamic theory.
	A theory is constructed along these lines which is exactly soluble
	in one and two dimensions for models with an easy-plane anisotropy.
	The results should apply at low temperatures to one-dimensional ferromagnets
	such as CsNiF3, and agree with a microscopic truncated-spin-wave
	theory proposed by Villain. In two dimensions, we expect the calculations
	to be valid in a band of temperatures for XY magnets with an underlying
	hexagonal symmetry. The calculations should describe in addition
	the long-wavelength, low-frequency dynamics of third-sound propagation
	in films of 4He and 3He-4He mixtures. We also show that the critical
	exponent ν is ν≈1/2√ε for XY models in 2+ε dimensions. Some results
	for dynamics in three dimensions are presented as well.},
  doi = {10.1103/PhysRevB.16.4945},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/Nelson(1977)Dynamics of classical $XY$ spins in one and two dimensions.pdf:PDF},
  numpages = {10},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.09.06}
}

@BOOK{newman1999monte,
  title = {Monte Carlo methods in statistical physics},
  publisher = {Oxford University Press, USA},
  year = {1999},
  editor = {S. Adlung, D. Degenhardt and J. Tompson},
  author = {Newman, M.E.J. and Barkema, GT},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/Livros/Newman M.E.J., Barkema G.T. Monte Carlo Methods in Statistical Physics.djvu:Djvu},
  owner = {joao},
  timestamp = {2010.01.26}
}

@ARTICLE{PhysRevB.68.174503,
  author = {Nho, Kwangsik and Manousakis, Efstratios },
  title = {Heat-capacity scaling function for confined superfluids},
  journal = {Phys. Rev. B},
  year = {2003},
  volume = {68},
  pages = {174503},
  number = {17},
  month = {Nov},
  abstract = {We study the specific-heat scaling function of confined superfluids
	using Monte Carlo simulation. While the scaling function is insensitive
	to the microscopic details, it depends on the confining geometry
	and boundary conditions (BC’s). In the present work we have studied
	(a) cubic geometry with open BC’s in all three directions and (b)
	parallel-plate (film) geometry using open BC’s along the finite dimension
	and periodic BC’s along the other two dimensions. We find that the
	specific-heat scaling function is significantly different for the
	two different geometries studied. The scaling function for each geometry
	(a) or (b) is very different when compared to that obtained for the
	same geometry but with periodic BC’s. On the contrary, we find that
	in case (b) the calculated scaling function is very close to the
	earlier calculated using Dirichlet instead of open BC’s. This demonstrates
	that Dirichlet and open boundary conditions act in a similar way.
	Our results for both scaling functions obtained for the parallel-plate
	geometry and for cubic geometry with open BC’s along the finite dimensions
	are in very good agreement with recent very-high-quality experimental
	measurements with no free parameters.},
  doi = {10.1103/PhysRevB.68.174503},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/Nho(2003)Heat-capacity scaling function for confined superfluids.pdf:PDF},
  numpages = {6},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.12.16}
}

@ARTICLE{Nho2001,
  author = {K. Nho and E. Manousakis},
  title = {Scaling of thermal conductivity of helium confined in pores},
  journal = {Phys. Rev. B},
  year = {2001},
  volume = {64},
  pages = {1-5},
  number = {144513},
  note = {15f},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/(2001)Scaling of thermal conductivity of helium conﬁned in pores.pdf:PDF},
  owner = {Jo{\~a}o Batista}
}

@ARTICLE{PhysRevB.59.11575,
  author = {Nho, Kwangsik and Manousakis, Efstratios},
  title = {Critical behavior of the planar magnet model in three dimensions},
  journal = {Phys. Rev. B},
  year = {1999},
  volume = {59},
  pages = {11575--11578},
  number = {17},
  month = {May},
  abstract = {We study the critical behavior of the three-dimensional planar magnet
	model in which each spin is considered to have three components of
	which only the x and y components are coupled. We use a hybrid Monte
	Carlo algorithm in which a single-cluster update is combined with
	the over-relaxation and Metropolis spin reorientation algorithm.
	Periodic boundary conditions were applied in all directions. We have
	calculated the fourth-order cumulant in finite-size lattices using
	the single-histogram reweighting method. Using finite-size scaling
	theory, we obtained the critical temperature which is very different
	from that of the usual XY model. At the critical temperature, we
	calculated the susceptibility and the magnetization on lattices of
	size up to 423. Using finite-size scaling theory we accurately determine
	the critical exponents of the model and find that ν=0.670(7), γ/ν=1.9696(37),
	and β/ν=0.515(2). Thus we conclude that the model belongs to the
	same universality class with the XY model, as expected.},
  doi = {10.1103/PhysRevB.59.11575},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Kwangsik(1999)Critical behavior of the planar magnet model in three dimensions.pdf:PDF},
  numpages = {3},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.01.16}
}

@ARTICLE{PhysRevB.52.4526,
  author = {Olsson, Peter},
  title = {Monte Carlo analysis of the two-dimensional XY model. II. Comparison
	with the Kosterlitz renormalization-group equations},
  journal = {Phys. Rev. B},
  year = {1995},
  volume = {52},
  pages = {4526--4535},
  number = {6},
  month = {Aug},
  abstract = {The temperature scale of relevance for the vortex excitations in the
	two-dimensional XY model is identified. The size dependence of the
	helicity modulus at constant vortex temperature is then obtained
	by Monte Carlo simulations. The Monte Carlo data are then compared
	with the results for the length-dependent dielectric function from
	the Kosterlitz renormalization-group equations. The agreement is
	excellent for temperatures up to and slightly above Tc. The critical
	temperature is determined to be Tc=0.892 13(10). The temperature
	dependence of the characteristic length right above Tc is also obtained
	and found to be in agreement with recent results from high-temperature
	series expansions.},
  doi = {10.1103/PhysRevB.52.4526},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Olsson(1995)Monte Carlo analysis of the two-dimensional XY model. II. Comparison with the Kosterlitz renormalization-group equations.pdf:PDF},
  numpages = {9},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.12.10}
}

@ARTICLE{PhysRevLett.73.3339,
  author = {Olsson, Peter },
  title = {Self-Consistent Boundary Conditions in the $2D~XY$ Model},
  journal = {Phys. Rev. Lett.},
  year = {1994},
  volume = {73},
  pages = {3339--3342},
  number = {25},
  month = {Dec},
  abstract = {A generalization of periodic boundary conditions to incorporate fluctuations
	with wavelength larger than the system size is discussed. These boundary
	conditions are applied to Monte Carlo calculations on the two-dimensional
	XY model. The finite-size effect on the vortex-vortex correlation
	function, and thereby the dielectric function, is shown to be virtually
	eliminated. These Monte Carlo data are shown to be in excellent agreement
	with the Kosterlitz renormalization group equations, and the critical
	temperature is found to be Tc=0.8922(2).},
  doi = {10.1103/PhysRevLett.73.3339},
  numpages = {3},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2011.02.04}
}

@ARTICLE{PhysRevE.66.026108,
  author = {Palma, G. and Meyer, T. and Labb\'e, R. },
  title = {Finite size scaling in the two-dimensional $XY$ model and generalized
	universality},
  journal = {Phys. Rev. E},
  year = {2002},
  volume = {66},
  pages = {026108},
  number = {2},
  month = {Aug},
  abstract = {In recent works [S. T. Bramwell, P. C. W. Holdsworth, and J.-F. Pinton,
	Nature (London) 396, 552 (1998); S. T. Bramwell et al., Phys. Rev.
	Lett. 84, 3744 (2000)], a generalized universality has been proposed,
	linking phenomena as dissimilar as two-dimensional (2D) magnetism
	and turbulence. To test these ideas, we performed Monte Carlo simulations
	of the 2D XY model. We found that the shape of the probability distribution
	function for the magnetization M is non-Gaussian and independent
	of the system size—in the range of the lattice sizes studied—below
	the Kosterlitz-Thoules temperature. However, our results suggest
	that in the full 2D XY model the shape of these distributions has
	a slight dependence on temperature—for finite volume—below the lattice-shifted
	critical temperature T*(L). This behavior can be explained by using
	renormalization group arguments and an extended finite-size scaling
	analysis, and by the existence of bounds for M.},
  doi = {10.1103/PhysRevE.66.026108},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/Palma(2002)Finite size scaling in the two-dimensional XY model and generalized universality.pdf:PDF},
  numpages = {5},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.12.06}
}

@ARTICLE{palma2009analytical,
  author = {Palma, G. and Zambrano, D.},
  title = {{Analytical computation of the magnetization probability density
	function for the harmonic 2D XY model}},
  journal = {Arxiv preprint arXiv:0912.0420},
  year = {2009},
  abstract = {The probability density function (PDF) of some global average quantity
	plays a fundamental role in critical and highly correlated systems.
	We explicitly compute this quantity as a function of the magnetization
	for the two dimensional XY model in its harmonic approximation. Numerical
	simulations and perturbative results have shown a Gumbel-like shape
	of the PDF, in spite of the fact that the average magnetization is
	not an extreme variable. Our analytical result allows to test both
	perturbative analytical expansions and also numerical computations
	performed previously. Perfect agreement is found for the first moments
	of the PDF. Also for large volume and in the high temperature limit
	the distribution becomes Gaussian, as it should be. In the low temperature
	regime its numerical evaluation is compatible with a Gumbel distribution..
	Comment: 4 pages, 3 figures},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/Palma(2009)Analytical computation of the magnetization probability density function for the harmonic 2D XY model.pdf:PDF},
  owner = {joao},
  timestamp = {2010.12.12}
}

@ARTICLE{pawig1998monte,
  author = {Pawig, S.G. and Pinn, K.},
  title = {Monte Carlo Algorithms for the Fully Frustrated XY Model},
  journal = {International Journal of Modern Physics C},
  year = {1998},
  volume = {9},
  pages = {727--736},
  abstract = {We investigate local update algorithms for the fully frustrated XY
	model on a square lattice. In addition to the standard updating procedures
	like the Metropolis or heat bath algorithm we include overrelaxation
	sweeps, implemented through single spin updates that preserve the
	energy of the configuration. The dynamical critical exponent (of
	order two) stays more or less unchanged. However, the integrated
	autocorrelation times of the algorithm can be significantly reduced.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Pawig(1998)Monte Carlo Algorithms For the Fully Frustrated XY Model.pdf:PDF},
  owner = {joao},
  timestamp = {2010.01.26},
  url = {http://dx.doi.org/10.1142/S0129183198000637}
}

@ARTICLE{Pelissetto2002549,
  author = {Andrea Pelissetto and Ettore Vicari},
  title = {Critical phenomena and renormalization-group theory},
  journal = {Physics Reports},
  year = {2002},
  volume = {368},
  pages = {549 - 727},
  number = {6},
  __markedentry = {[joao]},
  abstract = {We review results concerning the critical behavior of spin systems
	at equilibrium. We consider the Ising and the general O(N)-symmetric
	universality classes, including the N→0 limit that describes the
	critical behavior of self-avoiding walks. For each of them, we review
	the estimates of the critical exponents, of the equation of state,
	of several amplitude ratios, and of the two-point function of the
	order parameter. We report results in three and two dimensions. We
	discuss the crossover phenomena that are observed in this class of
	systems. In particular, we review the field-theoretical and numerical
	studies of systems with medium-range interactions.
	
	
	Moreover, we consider several examples of magnetic and structural
	phase transitions, which are described by more complex Landau–Ginzburg–Wilson
	Hamiltonians, such as N-component systems with cubic anisotropy,
	O(N)-symmetric systems in the presence of quenched disorder, frustrated
	spin systems with noncollinear or canted order, and finally, a class
	of systems described by the tetragonal Landau–Ginzburg–Wilson Hamiltonian
	with three quartic couplings. The results for the tetragonal Hamiltonian
	are original, in particular we present the six-loop perturbative
	series for the β-functions. Finally, we consider a Hamiltonian with
	symmetry O(n1)circled plusO(n2) that is relevant for the description
	of multicritical phenomena.},
  doi = {10.1016/S0370-1573(02)00219-3},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/Pelissetto(2002)Critical phenomena and renormalization-group theory.pdf:PDF},
  issn = {0370-1573},
  owner = {joao},
  timestamp = {2010.11.29},
  url = {http://www.sciencedirect.com/science/article/B6TVP-46P9PN8-2/2/1bbe2aae1bd2c3248a6bc4460cc9fce0}
}

@ARTICLE{Plascak2007,
  author = {J. A. PIascak and Shan-Ho Tsai and D. P. Landau},
  title = {Spin-dynamics simulations of the XY vector Blume-Emery-Grifliths
	model in three dimensions},
  journal = {Phys. Rev. E},
  year = {2007},
  volume = {76},
  pages = {011105},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/J. A. Plascak(2007)Spin-dynamics simulations of the XY vector Blume-Emery-Griffiths model in three dimensions.pdf:PDF},
  owner = {Jo{\~a}o Batista}
}

@ARTICLE{PhysRevB.61.3188,
  author = {Plascak, J. A. and Zamora, Ligia E. and P\'erez Alcazar, G. A.},
  title = {Ising model for disordered ferromagnetic $Fe-Al$ alloys},
  journal = {Phys. Rev. B},
  year = {2000},
  volume = {61},
  pages = {3188--3191},
  number = {5},
  month = {Feb},
  abstract = {A simple site-diluted Ising model is proposed to study the magnetic
	properties of FepAlq alloys (with p+q=1) in the structural disordered
	phase. It is assumed that Al atoms, which are nonmagnetic, can induce
	an extra ferromagnetic interaction between second-neighbor Fe atoms.
	It is further assumed that this second-neighbor interaction, as well
	as the nearest-neighbor one, decreases as q increases. The critical
	properties are obtained by the variational approach based on Bogoliubov
	inequality for the free energy in the pair approximation. Quite good
	fittings to the experimental results of the ordering temperature
	are obtained as a function of q. A negative value of the extra exchange
	interaction for some range of the Al concentration is obtained. It
	is argued that this negative exchange can drive a spin-glass-like
	phase in these compounds, a fact that should be sought experimentally.},
  doi = {10.1103/PhysRevB.61.3188},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/Plascak(2000)Ising model for disordered ferromagnetic Fe-Al alloys.pdf:PDF},
  numpages = {3},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.12.12}
}

@ARTICLE{plascak2002cluster,
  author = {Plascak, JA and Ferrenberg, A.M. and Landau, DP},
  title = {Cluster hybrid Monte Carlo simulation algorithms},
  journal = {Physical Review E},
  year = {2002},
  volume = {65},
  pages = {66702},
  number = {6},
  doi = {10.1103/PhysRevE.65.066702},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/(2002)Cluster hybrid Monte Carlo simulation algorithms.pdf:PDF},
  owner = {joao},
  publisher = {APS},
  timestamp = {2010.06.21}
}

@ARTICLE{Ramos2004,
  author = {Roberto Ramos and Oscar Vilches},
  title = {The High Temperature Phase Diagram of Single-layer $^3$He-$^4$He
	Mixtures},
  journal = {J. Low Temp Phys},
  year = {2004},
  volume = {134},
  pages = {55-60},
  number = {112},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Experimental/2000-2004/(2004)High Temperature Phase Diagram of Single-layer 3He-4He Mixtures.pdf:PDF},
  owner = {Jo{\~a}o Batista}
}

@ARTICLE{reeve1976magnetically,
  author = {Reeve, JS},
  title = {The magnetically dilute XY ferromagnet. II. The annealed site case},
  journal = {Journal of Physics C: Solid State Physics},
  year = {1976},
  volume = {9},
  pages = {2575},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/(1976)The magnetically dilute XY ferromagnet. II. The annealed site case.pdf:PDF},
  owner = {joao},
  publisher = {IOP Publishing},
  timestamp = {2010.08.10}
}

@ARTICLE{reeve1975magnetically,
  author = {JS Reeve and DD Betts},
  title = {The magnetically dilute XY ferromagnet. I. The quenched site case},
  journal = {Journal of Physics C: Solid State Physics},
  year = {1975},
  volume = {8},
  pages = {2642--2654},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/(1975)The magnetically dilute XY ferromagnet \:I. The quenched site case.pdf:PDF},
  owner = {joao},
  publisher = {Institute of Physics Publishing},
  timestamp = {2010.01.06}
}

@ARTICLE{reeve1977magnetically,
  author = {JS Reeve and DD Betts and J. Rogiers},
  title = {The magnetically dilute XY ferromagnet. III. Two-dimensional lattices},
  journal = {Journal of Physics C: Solid State Physics},
  year = {1977},
  volume = {10},
  pages = {1941--1947},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/(1977)The magnetically dilute XY ferromagnet. III. Two-dimensional lattices.pdf:PDF},
  owner = {joao},
  publisher = {Institute of Physics Publishing},
  timestamp = {2010.01.06}
}

@ARTICLE{PhysRevB.41.4774,
  author = {A. Rosales Rivera and G. A. {Perez Alcazar} and J. A. PIascak},
  title = {Diluted and random-bond Ising model: Application to the Fe-Mn-Al
	alloys},
  journal = {Phys. Rev. B},
  year = {1990},
  volume = {41},
  pages = {4774--4777},
  number = {7},
  month = {Mar},
  note = {baixado},
  abstract = {A quenched disordered Ising model with a distribution function that
	includes dilution and random bonds is studied through the mean-field
	renormalization-group approach. The phase diagram is obtained, and
	the results are applied to Fe-Mn-Al alloys. Fittings of the experimental
	phase diagram and the reduced mean hyperfine field at room temperature
	are shown to be better than those previously obtained through a single-site
	diluted model.},
  doi = {10.1103/PhysRevB.41.4774},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/Rivera(1990)Diluted and random-bond Ising model\: Application to the Fe-Mn-Al alloys.pdf:PDF},
  numpages = {3},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.01.02}
}

@ARTICLE{Ruckenstein201056,
  author = {Eli Ruckenstein and Gersh O. Berim},
  title = {Symmetry breaking in confined fluids},
  journal = {Advances in Colloid and Interface Science},
  year = {2010},
  volume = {154},
  pages = {56 - 76},
  number = {1-2},
  doi = {10.1016/j.cis.2010.01.008},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Ruckenstein (2010)Symmetry breaking in confined fluids.pdf:PDF},
  issn = {0001-8686},
  keywords = {Symmetry breaking},
  owner = {joao},
  timestamp = {2010.08.29},
  url = {http://www.sciencedirect.com/science/article/B6V5F-4Y889TB-1/2/9a0e7e985e49bcb2d29e8c81533a5992}
}

@ARTICLE{PhysRevB.47.5520,
  author = {M. B. Salamon and Jing Shi and Neil Overend and M. A. Howson},
  title = {XY-like critical behavior of the thermodynamic and transport properties
	of $YBa2$$Cu3$$O7-x$ in magnetic fields near $Tc$},
  journal = {Phys. Rev. B},
  year = {1993},
  volume = {47},
  pages = {5520--5523},
  number = {9},
  month = {Mar},
  abstract = {The heat capacity, magnetization, and electrical conductivity of single-crystal
	samples of YBa2Cu3O7-x have been measured and are shown to support
	the existence of an intermediate critical regime in the vicinity
	of Tc, governed by the XY-like critical exponent ν≃2/3. Clear evidence
	is found for the divergence of the ohmic conductivity along the line
	Hm(T)∝(1-T/Tc)2ν, the vortex melting line. The glass exponents along
	that line satisfy zg(νg-1)≃6.},
  doi = {10.1103/PhysRevB.47.5520},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Experimental/1985-1994/Salamon(1993)XY-like critical behavior of the thermodynamic and transport properties of $YBa2$$Cu3$$O7-x$ in magnetic fields near $Tc$.pdf:PDF},
  numpages = {3},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.01.06}
}

@ARTICLE{santos2007monte,
  author = {Santos-Filho, JB and Moreno, NO and de Albuquerque, DF and de Arruda,
	AS},
  title = {{Monte Carlo studies of the cubic lattice mixed-bond Ising model}},
  journal = {Physica B: Condensed Matter},
  year = {2007},
  volume = {398},
  pages = {294--296},
  number = {2},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Santos-Filho(2007)Monte Carlo studies of the cubic lattice mixed-bond Ising model.pdf:PDF},
  issn = {0921-4526},
  owner = {joao},
  publisher = {Elsevier},
  timestamp = {2010.12.26}
}

@ARTICLE{SantosFilho20102934,
  author = {J.B. Santos-Filho and J.A. Plascak and D.P. Landau},
  title = {Monte Carlo study of the triangular XY vector Blume-Emery-Griffiths
	model},
  journal = {Physica A: Statistical Mechanics and its Applications},
  year = {2010},
  volume = {389},
  pages = {2934 - 2938},
  number = {15},
  note = {Statistical, Fluid and Biological Physics Problems - An MIT Symposium
	and Articles dedicated to A. Nihat Berker on his 60th Birthday},
  doi = {10.1016/j.physa.2009.12.067},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Santos-Filho(2010)Monte Carlo study of the triangular XY vector Blume–Emery–Griffiths model.pdf:PDF},
  issn = {0378-4371},
  keywords = {XY Vectorial BEG model},
  owner = {joao},
  timestamp = {2010.08.08},
  url = {http://www.sciencedirect.com/science/article/B6TVG-4Y6J3VJ-2/2/cc782ac599b679e151c569992a38e69e}
}

@ARTICLE{1742-6596-249-1-012038,
  author = {J B Santos-Filho and N O Moreno and Douglas F de Albuquerque},
  title = {Monte Carlos studies of critical and dynamic phenomena in mixed bond
	Ising model},
  journal = {Journal of Physics: Conference Series},
  year = {2010},
  volume = {249},
  pages = {012038},
  number = {1},
  abstract = {The phase transition of a random mixed-bond Ising ferromagnet on a
	cubic lattice model is studied both numerically and analytically.
	In this work, we use the Metropolis and Wolff algorithm with histogram
	technique and finite size scaling theory to simulate the dynamics
	of the system. We obtained the thermodynamic quantities such as magnetization,
	susceptibility, and specific heat. Our results were compared with
	those obtained using a new technique in effective field theory that
	employs similar probability distribution within the framework of
	two-site clusters.},
  doi = {10.1088/1742-6596/249/1/012038},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Santos-Filho(2010)Monte Carlos studies of critical and dynamic phenomena in mixed bond Ising model.pdf:PDF},
  owner = {joao},
  timestamp = {2010.12.24},
  url = {http://stacks.iop.org/1742-6596/249/i=1/a=012038}
}

@ARTICLE{PhysRevB.75.174517,
  author = {Schneider, T. },
  title = {Evidence for three-dimensional $XY$ critical properties in underdoped
	$YBa_{2}Cu_{3}O_{7-{}\delta{}}$ },
  journal = {Phys. Rev. B},
  year = {2007},
  volume = {75},
  pages = {174517},
  number = {17},
  month = {May},
  abstract = {We perform a detailed analysis of the reversible magnetization data
	of Salem-Sugui et al. and Babíc et al. of underdoped and optimally
	doped YBa2Cu3O7−δ single crystals. Near the zero field transition
	temperature we observe extended consistency with the properties of
	the three-dimensional XY universality class, even though the attained
	critical regime is limited by an inhomogeneity induced finite size
	effect. Nevertheless, as Tc falls from 93.5 to 41.5 K, the critical
	amplitude of the in-plane correlation length ξab0, the anisotropy
	γ=ξab0∕ξc0 and the critical amplitude of the in-plane penetration
	depth λab0 increase substantially, while the critical amplitude of
	the c-axis correlation length ξc0 does not change much. As a consequence,
	the correlation volume V corr− increases and the critical amplitude
	of the specific heat singularity A− decreases dramatically, while
	the rise of λab0 reflects the behavior of the zero temperature counterpart.
	Conversely, although ξab0 and λab0 increase with reduced Tc, the
	ratio λab0∕ξ ab0−, corresponding to the Ginzburg-Landau parameter
	κab, decreases substantially and YBa2Cu3O7−δ crosses over from an
	extreme to a weak type-II superconductor.},
  doi = {10.1103/PhysRevB.75.174517},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Schneider(2007)Evidence for three-dimensional XY critical properties in underdoped YBa2Cu3O7−.pdf:PDF},
  numpages = {10},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.12.18}
}

@ARTICLE{schultka1997boundary,
  author = {Schultka, N. and Manousakis, E.},
  title = {Boundary effects in superfluid films},
  journal = {Journal of Low Temperature Physics},
  year = {1997},
  volume = {109},
  pages = {733--762},
  number = {5},
  __markedentry = {[joao]},
  abstract = {We have studied the superfluid density and the specific heat of the
	x − y model on latticesL×L×H withL≫H (i.e. on lattices representing
	a film geometry) using the Cluster Monte Carlo method. In theH-direction
	we applied staggered boundary conditions so that the order parameter
	on the top and bottom layers is zero, whereas periodic boundary conditions
	were applied in theL-directions. We find that the system exhibits
	a Kosterlitz-Thouless phase transition at theH-dependent temperatureT
	c 2D below the critical temperature Tgl of the bulk system. However,
	right at the critical temperature the ratio of the areal superfluid
	density to the critical temperature isH-dependent in the range of
	film thicknesses considered here. We do not find satisfactory finite-size
	scaling of the superfluid density with respect toH for the sizes
	ofH studied. However, our numerical results can be collapsed onto
	a single curve by introducing an effective thicknessH eff=H+D (whereD
	is a constant) into the corresponding scaling relations. We argue
	that the effective thickness depends on the type of boundary conditions.
	Scaling of the specific heat does not require an effective thickness
	(within error bars) and we find good agreement between the scaling
	functionf 1 calculated from our Monte Carlo results,f 1 calculated
	by renormalization group methods, and the experimentally determined
	functionf 1.},
  doi = {10.1007/BF02435487},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Schultka(1997)Boundary Effects in Superfluid Films.pdf:PDF},
  issn = {0022-2291},
  owner = {joao},
  publisher = {Springer},
  timestamp = {2010.12.22}
}

@ARTICLE{PhysRevB.51.11712,
  author = {Schultka, Norbert and Manousakis, Efstratios},
  title = {Crossover from two- to three-dimensional behavior in superfluids},
  journal = {Phys. Rev. B},
  year = {1995},
  volume = {51},
  pages = {11712--11720},
  number = {17},
  month = {May},
  abstract = {We have studied the superfluid density ρs on various size lattices
	in the geometry L×L×H by numerical simulation of the x-y model using
	the cluster Monte Carlo method. Applying the Kosterlitz-Thouless-Nelson
	renormalization-group equations for the superfluid density we have
	been able to extrapolate to the L→∞ limit for a given value of H.
	In the superfluid phase we find that the superfluid density faithfully
	obeys the expected scaling law with H, using the experimental value
	for the critical exponent ν=0.6705. For the sizes of film thickness
	studied here the critical temperature Tc2D(H) is in agreement with
	the expected H dependence deduced from general scaling ideas.},
  doi = {10.1103/PhysRevB.51.11712},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Schultka(1995)Crossover from two- to three-dimensional behavior in superfluids.pdf:PDF},
  numpages = {8},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.12.16}
}

@ARTICLE{schultka1994finite,
  author = {N. Schultka and E. Manousakis},
  title = {Finite-size scaling in two-dimensional superfluids},
  journal = {Phys. Rev. B},
  year = {1994},
  volume = {49},
  pages = {12071--12077},
  number = {17},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/(1994)Finite-size scaling in two-dimensional superftuids.pdf:PDF},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2009.12.28}
}

@ARTICLE{PhysRevB.30.5103,
  author = {Singasaas, Alan and Ahlers, Guenter },
  title = {Universality of static properties near the superfluid transition
	in $^{4}He$},
  journal = {Phys. Rev. B},
  year = {1984},
  volume = {30},
  pages = {5103--5115},
  number = {9},
  month = {Nov},
  abstract = {We present the results of new analyses of static properties near the
	superfluid transition in 4He which incorporate recent accurate entropy
	measurements. They yield a superfluid density exponent ζ=0.6717±0.0004
	at vapor pressure, where the quoted error is 1 standard deviation.
	This yields a specific-heat exponent α=-0.015 via scaling. We assumed
	these exponents to be universal (i.e., independent of pressure) in
	the remainder of the analysis. Their systematic errors are difficult
	to estimate; therefore we analyzed data at higher pressures with
	the three values ζ=0.669, 0.672, and 0.675, corresponding to α=-0.007,
	-0.016, and -0.025, respectively, which surely bracket the true values.
	Regardless of the exponent pair used, pressure-independent results
	were obtained for all experimentally accessible amplitude combinations
	that have been predicted to be universal. Specifically, the problem
	of apparent deviations from two-scale-factor universality along the
	λ line has been resolved by the use of the new entropy measurements
	and this analysis.},
  doi = {10.1103/PhysRevB.30.5103},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/Singsaas(1984)Universality of static properties near the superfluid transition in 4He.pdf:PDF},
  numpages = {12},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.12.16}
}

@BOOK{stanley1987introduction,
  title = {{Introduction to phase transitions and critical phenomena}},
  publisher = {Clarendon Press-Oxford},
  year = {1971},
  author = {Stanley, H.E.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/Livros/stanley_h.e.(1971)introduction_to_phase_transitions__and_critical_phenomena.djvu:Djvu},
  owner = {joao},
  timestamp = {2010.12.11}
}

@BOOK{stauffer1994introduction,
  title = {Introduction to percolation theory},
  publisher = {CRC},
  year = {1994},
  author = {Stauffer, D. and Aharony, A.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/Livros/Stauffer, Aharony. Introduction to percolation theory (Taylor-Francis, 1992)(K)(600dpi)(T)(ISBN 0748402535)(179s)_MP_.djvu:Djvu},
  owner = {joao},
  timestamp = {2010.01.27}
}

@ARTICLE{sun2010berezinskii,
  author = {Sun, Y.Z. and Liang, J.C. and Xu, S.L. and Yi, L.},
  title = {Berezinskii-Kosterlitz-Thouless phase transition of 2D dilute generalized
	XY model},
  journal = {Physica A: Statistical Mechanics and its Applications},
  year = {2010},
  volume = {389},
  pages = {1391--1399},
  number = {7},
  abstract = {The Berezinskii–Kosterlitz–Thouless (BKT) phase transition of 2D dilute
	generalized XY model on a triangular lattice is studied by a hybrid
	Monte Carlo (MC) method. The critical temperatures are obtained by
	several methods for dilute and non-dilute cases. It is found that
	the critical temperature decreases with increasing non-magnetic occupation
	density ρ and the BKT phase transition vanishes when the magnetic
	occupation density reaches the site percolation threshold: ρmag=pc=0.5.
	Some thermodynamic quantities are also discussed.},
  doi = {10.1016/j.physa.2009.12.023},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Yun-Zhou Sun(2010)Berezinskii–Kosterlitz–Thouless phase transition of 2D dilute generalized XY model.pdf:PDF},
  owner = {joao},
  publisher = {Elsevier},
  timestamp = {2010.08.01}
}

@ARTICLE{sun2009thermodynamic,
  author = {Sun, Y.Z. and Yi, L. and Gao, Y.H.},
  title = {Thermodynamic and critical properties of dilute XY magnets: Monte
	Carlo study},
  journal = {Solid State Communications},
  year = {2009},
  volume = {149},
  pages = {1000--1003},
  number = {25-26},
  abstract = {The thermodynamic and critical properties of two dimensional dilute
	XY spin magnets on a triangular lattice are studied by using a hybrid
	Monte Carlo method. The critical temperatures of different non-magnetic
	impurity densities are obtained by two types of methods, including
	finite-size scaling of plane magnetic susceptibility and helicity
	modulus. It is found that the dilution plays an important effect
	on the critical temperature and thermodynamic equilibrium properties.
	The critical temperature decreases with the increase of magnetic
	impurity density ρ and the BKT phase transition vanishes at the site
	percolation threshold pc=0.5.},
  doi = {10.1016/j.ssc.2009.04.010},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Yun-Zhou Sun(2009)Thermodynamic and critical properties of dilute XY magnets\: Monte Carlo study.pdf:PDF},
  owner = {joao},
  publisher = {Elsevier},
  timestamp = {2010.08.01}
}

@ARTICLE{Swendsen1987,
  author = {R. H. Swendsen and J.-S. Wang},
  title = {Nonuniversal Critica1 Dynamics in Monte Carlo Simulations},
  journal = {Phys. Rev. Lett.},
  year = {1987},
  volume = {58},
  pages = {86-88},
  number = {86},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/(1987)Nonuniversal Critica1 Dynamics in Monte Carlo Simulations .pdf:PDF},
  owner = {Jo{\~a}o Batista}
}

@ARTICLE{tanaka2002critical,
  author = {Tanaka, E. and Hatakeyama, K. and Noma, S. and Burmistrov, SN and
	Satoh, T.},
  title = {{Critical Supersaturation of Superfluid 3He-4He Mixtures}},
  journal = {Journal of Low Temperature Physics},
  year = {2002},
  volume = {127},
  pages = {81--117},
  number = {1},
  abstract = {We report the results of our systematic study of the phase separation
	in supersaturated 3He-4He liquid mixtures of the 3He-dilute phase.
	The amount of the critical supersaturation is determined within the
	wide ranges of the temperature (0.4–645mK) and the pressure (1–8.5kgf/cm2).
	Using the data we construct the surface of critical supersaturation,
	Deltax 3,thinspcr (T,thinspP), which enables us to recognize almost
	the overall behavior of the critical supersaturation in superfluid
	3He-4He mixtures. The main specific features observed are (i) below
	sim10mKDeltax 3, cr is almost temperature-independent, (ii) above
	sim10mK up to sim500mKDeltax 3, cr increases with the temperature,
	and (iii) above sim500mKDeltax 3, cr decreases smoothly with the
	increase of temperature down to zero at the tricritical point. We
	give various discussions from the viewpoint of the quantum nucleation,
	the classical thermal nucleation and the crossover between them.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Experimental/2000-2004/Tanaka(2002)Critical Supersaturation of Superfluid3He- 4He Mixtures.pdf:PDF},
  issn = {0022-2291},
  owner = {joao},
  publisher = {Springer},
  timestamp = {2010.11.29}
}

@ARTICLE{PhysRevB.42.2075,
  author = {Tiwari, Rajive and Glaberson, W. I.},
  title = {Phase diagram of $^3$He- $^4$He mixture films},
  journal = {Phys. Rev. B},
  year = {1990},
  volume = {42},
  pages = {2075--2083},
  number = {4},
  month = {Aug},
  abstract = {Superfluid density and dissipation have been measured as functions
	of temperature in 3-4He mixture films using a high-Q torsional oscillator.
	Transition temperatures between 1.3 and 1.9 K and 3He concentrations
	between 0.5% and 56% were investigated. In these films the superfluid
	transition temperature decreases monotonically with 3He concentration.
	This decrease is linear for smaller concentrations but becomes more
	rapid at higher concentrations. There were no clear signs of a transition
	to a phase-separated state observed. All the mixture films exhibit
	the characteristic universal jump in superfluid density at the transition.
	The results are compared with the bulk phase diagram and also with
	a simple phenomenological model.},
  doi = {10.1103/PhysRevB.42.2075},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/Tiwari(1990)Phase diagram of $^{3}-^{4}$He mixture films.pdf:PDF},
  numpages = {8},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.09.07}
}

@ARTICLE{PhysRevB.20.3761,
  author = {Tobochnik, Jan and Chester, G. V.},
  title = {Monte Carlo study of the planar spin model},
  journal = {Phys. Rev. B},
  year = {1979},
  volume = {20},
  pages = {3761--3769},
  number = {9},
  month = {Nov},
  doi = {10.1103/PhysRevB.20.3761},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/1979.pdf:PDF},
  numpages = {8},
  owner = {joao},
  publisher = {American Physical Society},
  review = {We have simulated the two-dimensional classical planar spin model
	using the Metropolis Monte Carlo technique. The loss of long-range
	order as a function of the size of the lattice was confirmed. The
	energy and specific heat were calculated for a square lattice of
	900, 3 600, and 10 000 spins. A sharp specific-heat peak was found
	at kBT/J=1.02 J is the nearest-neighbor coupling), 15% above the
	transition temperature kBTc/J=0.89. Tc was determined by fitting
	the spin-spin correlation function and the susceptibility to the
	forms of the Kosterlitz-Thouless theory. The density of vortex pairs
	was computed and found to increase exponentially with inverse temperature.
	At Tc vortex pairs begin to unbind and also larger clusters of vortices
	appear and unbind as the temperature is increased. These larger clusters
	may be responsible for the specific-heat peak being sharper and closer
	to Tc than simple theories predict.},
  timestamp = {2010.12.07}
}

@ARTICLE{Tsai2004,
  author = {Shan-Ho Tsai and M Krech and D. P. Landau},
  title = {Symplectic Integration Methods in Molecular and Spin Dynamics Simulations},
  journal = {Braz. J. Phys.},
  year = {2004},
  volume = {34},
  number = {2a},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/Shan-Ho Tsai(2004)Symplectic Integration Methods in Molecular     and Spin Dynamics Simulations .pdf:PDF},
  owner = {Jo{\~a}o Batista}
}

@ARTICLE{PhysRevB.67.104411,
  author = {Tsai, Shan-Ho and Landau, D. P.},
  title = {Critical dynamics of the simple-cubic Heisenberg antiferromagnet
	$RbMnF_3$ Extrapolation to $q=2$},
  journal = {Phys. Rev. B},
  year = {2003},
  volume = {67},
  pages = {104411},
  number = {10},
  month = {Mar},
  doi = {10.1103/PhysRevB.67.104411},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2000-2004/Shan-Ho Tsai and D. P. Landau(2003) Critical dynamics of the simple-cubic Heisenberg antiferromagnet RbMnF3\: Extrapolation to qÄ0.pdf:PDF},
  numpages = {6},
  owner = {Jo{\~a}o Batista},
  publisher = {American Physical Society}
}

@ARTICLE{Tsai2005,
  author = {Shan-Ho Tsai and H. K. Lee and D. P. Landau},
  title = {Molecular and spin dynamics simulations using modern integration
	methods},
  journal = {Am. J. Phys.},
  year = {2005},
  volume = {33},
  number = {7},
  abstract = {sem pdf
	
	
	Decomposition algorithms have proven useful for molecular dynamics
	and spin dynamics simulations of many-body systems. These methods
	are time reversible, symplectic, and the error in the total energy
	is bounded. In general, these techniques are accurate for much larger
	time steps than more standard integration methods. We review these
	decomposition algorithms and illustrate their performance for simulations
	of a Heisenberg ferromagnet. ©2005 American Association of Physics
	Teachers.},
  owner = {Jo{\~a}o Batista},
  url = {http://dx.doi.org/10.1119/1.1900096}
}

@ARTICLE{tucker1996effective,
  author = {JW Tucker and T. Idogaki and Y. Miyoshi},
  title = {An effective field theory for dilute anisotropic Heisenberg ferromagnets},
  journal = {Journal of Magnetism and Magnetic Materials},
  year = {1996},
  volume = {154},
  pages = {221--230},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/(1996)An effective field theory for dilute anisotropic Heisenberg ferromagnets.pdf:PDF},
  owner = {joao},
  timestamp = {2010.01.06}
}

@ARTICLE{valleau1972monte,
  author = {Valleau, JP and Card, DN},
  title = {{Monte Carlo estimation of the free energy by multistage sampling}},
  journal = {The Journal of Chemical Physics},
  year = {1972},
  volume = {57},
  pages = {5457},
  abstract = {A method is described for estimating the free energy and entropy of
	an assembly of particles. This is done by using Metropolis Monte
	Carlo techniques to generate energy distributions from which we may
	calculate the absolute volume of configuration space corresponding
	to a given energy, and thus the configuration integral. One incidentally
	obtains the thermodynamic quantities over a wide range of reduced
	temperature. It is particularly easy to apply the method to particles
	having hard cores, and calculations are reported for hard spheres
	with Coulombic forces.},
  doi = {doi:10.1063/1.1678245},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/VALLEAU(1972) Monte Carlo Estimation of the Free Energy by Multistage Sampling.pdf:PDF},
  owner = {joao},
  timestamp = {2010.11.18}
}

@ARTICLE{van1995two,
  author = {Van de Laar, RWA and van der Hock, A. and Van Beelen, H.},
  title = {{Two-dimensional behaviour of very thin 4He films on glass}},
  journal = {Physica B: Condensed Matter},
  year = {1995},
  volume = {216},
  pages = {24--36},
  number = {1-2},
  abstract = {The mass-flow resistance of 4He films on glass is investigated experimentally
	by means of the well-known technique of thermally-driven counterflow
	in the film—vapour system. Values of the critical film thickness
	at the onset point of superfluidity are determined accurately for
	temperatures ranging from 1.00 to 2.12 K. Extensive sets of data
	on the flow resistance of films in the superfluid region beyond their
	transition points are collected for 1.00K less-than-or-equals, slant
	T less-than-or-equals, slant 1.75 K.
	
	
	The power-law, predicted for the increase of the flow resistance with
	the mass-flow rate by the dynamic theory of two-dimensional films,
	is confirmed by the data. It is further found that the film thickness
	at the onset points varies linearly with the bulk transverse correlation
	length ξperpendicular(T) over the entire temperature range. Moreover,
	the variation of the exponent of the powerlaw with film thickness
	and temperature is found to scale with the length ratio x = δf/ξperpendicular,
	where δf is the film thickness, corrected for a temperature independent
	‘solid’ layer of 0.43 atomic layers. The areal superfluid density,
	deduced from the data, is found to increase with δf almost 50% steeper
	than the bulklike growth reported in literature.},
  doi = {10.1016/0921-4526(95)00440-8},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Experimental/1995-1999/Laar(1995)Two-dimensional behaviour of very thin 4He films on glass.pdf:PDF},
  issn = {0921-4526},
  owner = {joao},
  publisher = {Elsevier},
  timestamp = {2010.12.19}
}

@BOOK{volovik2009universe,
  title = {The Universe in a Helium droplet},
  publisher = {Oxford University Press, USA},
  year = {2009},
  author = {Volovik, G.E.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/Livros/GRIGORY E. VOLOVIK (2003)The Universe in a Helium Droplet .pdf:PDF},
  owner = {joao},
  timestamp = {2010.08.11}
}

@ARTICLE{wilding1997coexistence,
  author = {Wilding, N.B.},
  title = {Coexistence curve singularities at critical end points},
  journal = {Physical Review Letters},
  year = {1997},
  volume = {78},
  pages = {1488--1491},
  number = {8},
  __markedentry = {[joao]},
  abstract = {We report an extensive Monte Carlo study of critical end point behavior
	in a symmetrical binary fluid mixture. On the basis of general scaling
	arguments, singular behavior is predicted in the diameter of the
	liquid-gas coexistence curve as the critical end point is approached.
	The simulation results show clear evidence for this singularity,
	as well as confirming a previously predicted singularity in the coexistence
	chemical potential. Both singularities should be detectable experimentally.},
  doi = {10.1103/PhysRevLett.78.1488},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Nigel B. Wilding(1997)Coexistence Curve Singularities at Critical End Points.pdf:PDF},
  owner = {joao},
  publisher = {APS},
  timestamp = {2010.08.22}
}

@ARTICLE{wilding1995critical,
  author = {Wilding, N.B.},
  title = {Critical-point and coexistence-curve properties of the Lennard-Jones
	fluid: A finite-size scaling study},
  journal = {Physical Review E},
  year = {1995},
  volume = {52},
  pages = {602--611},
  number = {1},
  abstract = {Monte Carlo simulations within the grand canonical ensemble are used
	to explore the liquid-vapor coexistence-curve and critical-point
	properties of the Lennard-Jones fluid. Attention is focused on the
	joint distribution of density and energy fluctuations at coexistence.
	In the vicinity of the critical point, this distribution is analyzed
	using mixed-field finite-size scaling techniques aided by histogram
	reweighting methods. The analysis yields highly accurate estimates
	of the critical-point parameters as well as exposing the size and
	character of corrections to scaling. In the subcritical coexistence
	region the density distribution is obtained by combining multicanonical
	simulations with histogram reweighting techniques. It is demonstrated
	that this procedure permits an efficient and accurate mapping of
	the coexistence curve, even deep within the two-phase region.},
  doi = {10.1103/PhysRevE.52.602},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1995-1999/Nigel B. Wilding(1995)Critical-point and coexistence-curve properties of the Lennard-Jones fluid\:A finite-size scaling study.pdf:PDF},
  owner = {joao},
  publisher = {APS},
  timestamp = {2010.06.04}
}

@ARTICLE{wilks1957theory,
  author = {Wilks, J.},
  title = {The theory of liquid $^4$He},
  journal = {Reports on progress in physics},
  year = {1957},
  volume = {20},
  pages = {38},
  abstract = {An account is given of the present state of the theory of liquid 4He.
	At low temperatures it is no longer possible to consider the motion
	of individual atoms, and a wave mechanical treatment becomes necessary.
	Such a treatment, as developed by Landau and Feynman, characterizes
	the thermal motion of the liquid by ` elementary excitations ', the
	so-called phonons and rotons. A consideration of these excitations
	then leads to the ` two-fluid ' model. It is shown that the treatment
	is adequate to account for nearly all the properties of the liquid,
	which are briefly reviewed. The principal problem still out-standing
	concerns the behaviour of the liquid at high rates of flow or when
	carrying a large heat current, when it is clear that some form of
	turbulence is induced.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/0-1984/WILKS (1957)The theory of liquid 4He.pdf:PDF},
  owner = {joao},
  publisher = {IOP Publishing},
  timestamp = {2010.08.24},
  url = {http://dx.doi.org/10.1088/0034-4885/20/1/302}
}

@ARTICLE{Wolff1989,
  author = {Ulli Wolff},
  title = {Collective Monte Carlo Updating for Spin Systerns},
  journal = {Phys. Rev. Lett.},
  year = {1989},
  volume = {62},
  pages = {361-364},
  abstract = {A Monte Carlo algorithm is presented that updates large clusters of
	spins simultaneously in systems at and near criticality. We demonstrate
	its efficiency in the two-dimensional O(n) σ models for n=1 (Ising)
	and n=2 (x-y) at their critical temperatures, and for n=3 (Heisenberg)
	with correlation lengths around 10 and 20. On lattices up to 1282
	no sign of critical slowing down is visible with autocorrelation
	times of 1-2 steps per spin for estimators of long-range quantities.},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/1985-1994/Wolff(1989)Collective Monte Carlo Updating for Spin Systerns.pdf:PDF},
  owner = {Jo{\~a}o Batista}
}

@ARTICLE{wolff1989collective,
  author = {Ulli Wolff},
  title = {Collective Monte Carlo updating in a high precision study of the
	xy model},
  journal = {Nuclear Physics B},
  year = {1989},
  volume = {322},
  pages = {759--774},
  number = {3},
  abstract = {sem pdf
	
	
	We employ a recently developed collective Monte Carlo algorithm to
	simulate the two-dimensional x−y model at correlation lengths up
	to 69. No critical slowing down manifests itself in the measured
	observables. In the high-temperature phase of the model we observe
	an approach to criticality of the type predicted by Kosterlitz and
	Thouless and exclude a conventional critical point. The exponent
	η exceeds Image for the observed range of correlation lengths. In
	the spinwave phase we see a variable η and scaling behavior in agreement
	with the absence of ultraviolet coupling constant renormalization
	as expected for the abelian model.},
  owner = {joao},
  publisher = {North-Holland},
  timestamp = {2010.01.07}
}

@ARTICLE{PhysRevB.71.094423,
  author = {Wysin, G. M.},
  title = {Vacancy effects in an easy-plane Heisenberg model: Reduction of $T_{c}$
	and doubly charged vortices},
  journal = {Phys. Rev. B},
  year = {2005},
  volume = {71},
  pages = {094423},
  number = {9},
  month = {Mar},
  abstract = {Magnetic vortices in thermal equilibrium in two-dimensional magnets
	are studied here in the presence of a low concentration of nonmagnetic
	impurities (spin vacancies). A nearest-neighbor Heisenberg (XXZ)
	spin model with easy-plane exchange anisotropy is used to determine
	static thermodynamic properties and vortex densities via combined
	cluster and over-relaxation Monte Carlo simulations. Especially at
	low temperatures, a large fraction of the thermally generated vortices
	nucleate centered on vacancies, where they have a lower energy of
	formation. This fact is responsible for the reduction of the vortex-unbinding
	transition temperature with increasing vacancy concentration, similar
	to that seen in the planar rotator model. Spin vacancies also present
	the possibility of the appearance of vortices with double topological
	charges (±4π change in in-plane spin angle), stable only when centered
	on vacancies.},
  doi = {10.1103/PhysRevB.71.094423},
  numpages = {11},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2011.02.04}
}

@ARTICLE{PhysRevB.72.094418,
  author = {Wysin, G. M. and Pereira, A. R. and Marques, I. A. and Leonel, S.
	A. and Coura, P. Z.},
  title = {Extinction of the Berezinskii-Kosterlitz-Thouless phase transition
	by nonmagnetic disorder in planar symmetry spin models},
  journal = {Phys. Rev. B},
  year = {2005},
  volume = {72},
  pages = {094418},
  number = {9},
  month = {Sep},
  __markedentry = {[joao]},
  abstract = {The Berezinskii-Kosterlitz-Thouless (BKT) phase transition in two-dimensional
	planar rotator and XY models on a square lattice, diluted by randomly
	placed vacancies, is studied here using hybrid Monte Carlo simulations
	that combine single spin flip, cluster, and over-relaxation techniques.
	The transition temperature Tc is determined as a function of vacancy
	density ρvac by finite-size scaling of the helicity modulus and the
	in-plane magnetic susceptibility. The results for Tc are consistent
	with those from the much less precise fourth-order cumulant of Binder.
	Tc is found to decrease monotonically with increasing ρvac, and falls
	to zero close to the square lattice percolation limit, ρvac≈0.41.
	The result is physically reasonable: the quasi-long-range orientational
	order of the low-temperature phase cannot be maintained in the absence
	of sufficient spin interactions across the lattice.
	
	
	
	O Berezinskii-Kosterlitz Thouless-(BKT) transição de fase no rotor
	planar bidimensional XY e modelos em uma rede quadrada, diluído por
	vagas colocadas aleatoriamente, é estudado aqui, usando simulações
	de Monte Carlo híbridos que combinam único spin flip, cluster, e
	sobre- técnicas de relaxamento. A transição de temperatura Tc é determinada
	em função da densidade vaga ρvac pelo tamanho finito dimensionamento
	do módulo helicidade e em plano de susceptibilidade magnética. Os
	resultados do CT são coerentes com os dos cumulantes de quarta ordem
	muito menos precisa do Binder. Tc é encontrada para diminuir monotonicamente
	com o aumento ρvac, e cai para zero próximo do limite de percolação
	lattice quadrado, ρvac ≈ 0,41. O resultado é fisicamente razoável:
	a ordem de quase-longo alcance na orientação da fase de baixa temperatura
	não pode ser mantida na ausência de interações spin suficiente em
	toda a estrutura.},
  doi = {10.1103/PhysRevB.72.094418},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/Wysin(2005)Extinction of the Berezinskii-Kosterlitz-Thouless phase transition by nonmagnetic disorder in planar symmetry spin models.pdf:PDF},
  numpages = {10},
  owner = {joao},
  publisher = {American Physical Society},
  timestamp = {2010.08.02}
}

@ARTICLE{Yamaguchi2007,
  author = {Akira Yamaguchi and Takamichi Watanuki and Ryuichi Masutomi and Hidehiko
	Ishimoto},
  title = {Pressure-induced ferromagnetic solid 3He layer on 4He preplated graphite},
  journal = {Phys. Rev. B},
  year = {2007},
  volume = {75},
  pages = {092501},
  number = {092501},
  abstract = {Nuclear susceptibility of liquid 3He in Grafoil preplated by a few
	layers of 4He has been studied with a cw NMR method at temperatures
	between 0.7 and 100 mK under various liquid pressures. The 3.5 layers
	of 4He preplating suppress the formation of the first three solid
	3He layers, eliminating most of surface magnetization at saturated
	vapor pressure. However, with increasing liquid pressure, the magnetization
	obeying a Curie–Weiss law gradually grows in the same way as for
	pure liquid 3He. This magnetization, induced by pressurization, is
	attributable to the formation of solid 3He layer above the preplated
	4He. It shows a strong ferromagnetic tendency, probably due to the
	intralayer exchange interaction.},
  doi = {10.1103/PhysRevB.75.092501},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Experimental/2005-2010/Yamaguch(2007)Pressure-induced ferromagnetic solid 3He layer on 4He preplated graphite.pdf:PDF},
  owner = {Jo{\~a}o Batista}
}

@ARTICLE{zhang2006finite,
  author = {Zhang, C. and Nho, K. and Landau, DP},
  title = {Finite-size effects on the thermal resistivity of $^4$He in the quasi-two-dimensional
	geometry},
  journal = {Physical Review B},
  year = {2006},
  volume = {73},
  pages = {174508},
  number = {17},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Teórico/2005-2010/(2006)Finite-size effects on the thermal resistivity of 4He in the quasi-two-dimensional geometry.pdf:PDF},
  owner = {joao},
  publisher = {APS},
  timestamp = {2010.06.21}
}

@ARTICLE{Ziouzia2004,
  author = {F Ziouzia and H Patel and J Nyeki and B P Cowan and J Saunders},
  title = {Possible Phase Transition at Low mK Temperatures in Liquid Helium
	Mixture Films Adsorbed on Graphite},
  journal = {J. Low Temp Phys},
  year = {2004},
  volume = {134},
  pages = {79-84},
  number = {112},
  file = {:/home/joao/Documentos/Pesquisas/Doutorado/Referencias/artigos/Experimental/2000-2004/(2004)Possible Phase Transition in Liquid Helium Mixture Films.pdf:PDF},
  owner = {Jo{\~a}o Batista}
}

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Rev. E;Phys. Rev. Lett.;Prog. Theor. Phys.;}

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